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Finding the Fourth Proportional to 657,267.90, 985,221.45 and 357,114.30

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Solution

The fourth proportional to 657,267.90, 985,221.45 and 357,114.30 is: 535,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,267.90 : 985,221.45 = 357,114.30 : x
  2. Step 2: Convert to fraction form
    657,267.90/985,221.45 = 357,114.30/x
  3. Step 3: Cross multiply
    657,267.90x = 985,221.45 × 357,114.30
  4. Step 4: Simplify right side
    657,267.90x = 351,836,668,461.74
  5. Step 5: Solve for x
    x = 351,836,668,461.74/657,267.90
  6. Step 6: Final answer
    x = 535,301.77

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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.