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Finding the Fourth Proportional to 251,685.60, 377,139.60 and 218,248.80

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Solution

The fourth proportional to 251,685.60, 377,139.60 and 218,248.80 is: 327,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,685.60 : 377,139.60 = 218,248.80 : x
  2. Step 2: Convert to fraction form
    251,685.60/377,139.60 = 218,248.80/x
  3. Step 3: Cross multiply
    251,685.60x = 377,139.60 × 218,248.80
  4. Step 4: Simplify right side
    251,685.60x = 82,310,265,132.48
  5. Step 5: Solve for x
    x = 82,310,265,132.48/251,685.60
  6. Step 6: Final answer
    x = 327,036.05

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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.