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Finding the Fourth Proportional to 610,052.70, 915,079.05 and 189,371.10

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Solution

The fourth proportional to 610,052.70, 915,079.05 and 189,371.10 is: 284,056.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,052.70 : 915,079.05 = 189,371.10 : x
  2. Step 2: Convert to fraction form
    610,052.70/915,079.05 = 189,371.10/x
  3. Step 3: Cross multiply
    610,052.70x = 915,079.05 × 189,371.10
  4. Step 4: Simplify right side
    610,052.70x = 173,289,526,285.46
  5. Step 5: Solve for x
    x = 173,289,526,285.46/610,052.70
  6. Step 6: Final answer
    x = 284,056.65

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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.