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Finding the Fourth Proportional to 266,957.20, 400,824.60 and 207,859.60

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Solution

The fourth proportional to 266,957.20, 400,824.60 and 207,859.60 is: 312,092.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,957.20 : 400,824.60 = 207,859.60 : x
  2. Step 2: Convert to fraction form
    266,957.20/400,824.60 = 207,859.60/x
  3. Step 3: Cross multiply
    266,957.20x = 400,824.60 × 207,859.60
  4. Step 4: Simplify right side
    266,957.20x = 83,315,241,026.16
  5. Step 5: Solve for x
    x = 83,315,241,026.16/266,957.20
  6. Step 6: Final answer
    x = 312,092.13

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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.