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Finding the Fourth Proportional to 247,276.80, 341,248.14 and 139,841.64

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Solution

The fourth proportional to 247,276.80, 341,248.14 and 139,841.64 is: 192,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,276.80 : 341,248.14 = 139,841.64 : x
  2. Step 2: Convert to fraction form
    247,276.80/341,248.14 = 139,841.64/x
  3. Step 3: Cross multiply
    247,276.80x = 341,248.14 × 139,841.64
  4. Step 4: Simplify right side
    247,276.80x = 47,720,699,544.55
  5. Step 5: Solve for x
    x = 47,720,699,544.55/247,276.80
  6. Step 6: Final answer
    x = 192,984.94

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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.