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Finding the Fourth Proportional to 649,402.73, 974,210.71 and 200,123.67

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Solution

The fourth proportional to 649,402.73, 974,210.71 and 200,123.67 is: 300,218.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,402.73 : 974,210.71 = 200,123.67 : x
  2. Step 2: Convert to fraction form
    649,402.73/974,210.71 = 200,123.67/x
  3. Step 3: Cross multiply
    649,402.73x = 974,210.71 × 200,123.67
  4. Step 4: Simplify right side
    649,402.73x = 194,962,622,138.20
  5. Step 5: Solve for x
    x = 194,962,622,138.20/649,402.73
  6. Step 6: Final answer
    x = 300,218.36

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.