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Finding the Fourth Proportional to 218,801.20, 328,003.80 and 152,273.20

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Solution

The fourth proportional to 218,801.20, 328,003.80 and 152,273.20 is: 228,272.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,801.20 : 328,003.80 = 152,273.20 : x
  2. Step 2: Convert to fraction form
    218,801.20/328,003.80 = 152,273.20/x
  3. Step 3: Cross multiply
    218,801.20x = 328,003.80 × 152,273.20
  4. Step 4: Simplify right side
    218,801.20x = 49,946,188,238.16
  5. Step 5: Solve for x
    x = 49,946,188,238.16/218,801.20
  6. Step 6: Final answer
    x = 228,272.00

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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.