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Finding the Fourth Proportional to 278,421.99, 417,700.89 and 88,882.39

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Solution

The fourth proportional to 278,421.99, 417,700.89 and 88,882.39 is: 133,345.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,421.99 : 417,700.89 = 88,882.39 : x
  2. Step 2: Convert to fraction form
    278,421.99/417,700.89 = 88,882.39/x
  3. Step 3: Cross multiply
    278,421.99x = 417,700.89 × 88,882.39
  4. Step 4: Simplify right side
    278,421.99x = 37,126,252,364.07
  5. Step 5: Solve for x
    x = 37,126,252,364.07/278,421.99
  6. Step 6: Final answer
    x = 133,345.26

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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.