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Finding the Fourth Proportional to 508,385.57, 762,584.22 and 153,402.66

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Solution

The fourth proportional to 508,385.57, 762,584.22 and 153,402.66 is: 230,105.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,385.57 : 762,584.22 = 153,402.66 : x
  2. Step 2: Convert to fraction form
    508,385.57/762,584.22 = 153,402.66/x
  3. Step 3: Cross multiply
    508,385.57x = 762,584.22 × 153,402.66
  4. Step 4: Simplify right side
    508,385.57x = 116,982,447,822.03
  5. Step 5: Solve for x
    x = 116,982,447,822.03/508,385.57
  6. Step 6: Final answer
    x = 230,105.76

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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.