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Finding the Fourth Proportional to 384,834.80, 577,265.40 and 118,593.20

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Solution

The fourth proportional to 384,834.80, 577,265.40 and 118,593.20 is: 177,893.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,834.80 : 577,265.40 = 118,593.20 : x
  2. Step 2: Convert to fraction form
    384,834.80/577,265.40 = 118,593.20/x
  3. Step 3: Cross multiply
    384,834.80x = 577,265.40 × 118,593.20
  4. Step 4: Simplify right side
    384,834.80x = 68,459,751,035.28
  5. Step 5: Solve for x
    x = 68,459,751,035.28/384,834.80
  6. Step 6: Final answer
    x = 177,893.87

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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.