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Finding the Fourth Proportional to 247,045.85, 340,798.06 and 156,248.90

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Solution

The fourth proportional to 247,045.85, 340,798.06 and 156,248.90 is: 215,544.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,045.85 : 340,798.06 = 156,248.90 : x
  2. Step 2: Convert to fraction form
    247,045.85/340,798.06 = 156,248.90/x
  3. Step 3: Cross multiply
    247,045.85x = 340,798.06 × 156,248.90
  4. Step 4: Simplify right side
    247,045.85x = 53,249,321,997.13
  5. Step 5: Solve for x
    x = 53,249,321,997.13/247,045.85
  6. Step 6: Final answer
    x = 215,544.29

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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.