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Finding the Fourth Proportional to 288,561.69, 432,889.92 and 88,877.66

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Solution

The fourth proportional to 288,561.69, 432,889.92 and 88,877.66 is: 133,331.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,561.69 : 432,889.92 = 88,877.66 : x
  2. Step 2: Convert to fraction form
    288,561.69/432,889.92 = 88,877.66/x
  3. Step 3: Cross multiply
    288,561.69x = 432,889.92 × 88,877.66
  4. Step 4: Simplify right side
    288,561.69x = 38,474,240,962.74
  5. Step 5: Solve for x
    x = 38,474,240,962.74/288,561.69
  6. Step 6: Final answer
    x = 133,331.08

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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.