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Finding the Fourth Proportional to 304,677.60, 457,016.40 and 80,023.20

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Solution

The fourth proportional to 304,677.60, 457,016.40 and 80,023.20 is: 120,034.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,677.60 : 457,016.40 = 80,023.20 : x
  2. Step 2: Convert to fraction form
    304,677.60/457,016.40 = 80,023.20/x
  3. Step 3: Cross multiply
    304,677.60x = 457,016.40 × 80,023.20
  4. Step 4: Simplify right side
    304,677.60x = 36,571,914,780.48
  5. Step 5: Solve for x
    x = 36,571,914,780.48/304,677.60
  6. Step 6: Final answer
    x = 120,034.80

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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.