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Finding the Fourth Proportional to 278,363.82, 417,341.25 and 88,715.07

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Solution

The fourth proportional to 278,363.82, 417,341.25 and 88,715.07 is: 133,007.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,363.82 : 417,341.25 = 88,715.07 : x
  2. Step 2: Convert to fraction form
    278,363.82/417,341.25 = 88,715.07/x
  3. Step 3: Cross multiply
    278,363.82x = 417,341.25 × 88,715.07
  4. Step 4: Simplify right side
    278,363.82x = 37,024,458,207.64
  5. Step 5: Solve for x
    x = 37,024,458,207.64/278,363.82
  6. Step 6: Final answer
    x = 133,007.44

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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.