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Finding the Fourth Proportional to 247,046.40, 370,569.60 and 141,778.80

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Solution

The fourth proportional to 247,046.40, 370,569.60 and 141,778.80 is: 212,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,046.40 : 370,569.60 = 141,778.80 : x
  2. Step 2: Convert to fraction form
    247,046.40/370,569.60 = 141,778.80/x
  3. Step 3: Cross multiply
    247,046.40x = 370,569.60 × 141,778.80
  4. Step 4: Simplify right side
    247,046.40x = 52,538,913,204.48
  5. Step 5: Solve for x
    x = 52,538,913,204.48/247,046.40
  6. Step 6: Final answer
    x = 212,668.20

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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.