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Finding the Fourth Proportional to 542,358.69, 813,445.54 and 143,003.37

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Solution

The fourth proportional to 542,358.69, 813,445.54 and 143,003.37 is: 214,480.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,358.69 : 813,445.54 = 143,003.37 : x
  2. Step 2: Convert to fraction form
    542,358.69/813,445.54 = 143,003.37/x
  3. Step 3: Cross multiply
    542,358.69x = 813,445.54 × 143,003.37
  4. Step 4: Simplify right side
    542,358.69x = 116,325,456,224.38
  5. Step 5: Solve for x
    x = 116,325,456,224.38/542,358.69
  6. Step 6: Final answer
    x = 214,480.67

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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.