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Finding the Fourth Proportional to 508,148.62, 701,257.44 and 278,715.32

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Solution

The fourth proportional to 508,148.62, 701,257.44 and 278,715.32 is: 384,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,148.62 : 701,257.44 = 278,715.32 : x
  2. Step 2: Convert to fraction form
    508,148.62/701,257.44 = 278,715.32/x
  3. Step 3: Cross multiply
    508,148.62x = 701,257.44 × 278,715.32
  4. Step 4: Simplify right side
    508,148.62x = 195,451,191,791.98
  5. Step 5: Solve for x
    x = 195,451,191,791.98/508,148.62
  6. Step 6: Final answer
    x = 384,633.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.