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Finding the Fourth Proportional to 266,564.40, 399,700.80 and 108,614.40

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Solution

The fourth proportional to 266,564.40, 399,700.80 and 108,614.40 is: 162,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,564.40 : 399,700.80 = 108,614.40 : x
  2. Step 2: Convert to fraction form
    266,564.40/399,700.80 = 108,614.40/x
  3. Step 3: Cross multiply
    266,564.40x = 399,700.80 × 108,614.40
  4. Step 4: Simplify right side
    266,564.40x = 43,413,262,571.52
  5. Step 5: Solve for x
    x = 43,413,262,571.52/266,564.40
  6. Step 6: Final answer
    x = 162,862.19

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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.