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Finding the Fourth Proportional to 218,553.60, 327,830.40 and 152,068.80

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Solution

The fourth proportional to 218,553.60, 327,830.40 and 152,068.80 is: 228,103.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,553.60 : 327,830.40 = 152,068.80 : x
  2. Step 2: Convert to fraction form
    218,553.60/327,830.40 = 152,068.80/x
  3. Step 3: Cross multiply
    218,553.60x = 327,830.40 × 152,068.80
  4. Step 4: Simplify right side
    218,553.60x = 49,852,775,531.52
  5. Step 5: Solve for x
    x = 49,852,775,531.52/218,553.60
  6. Step 6: Final answer
    x = 228,103.20

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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.