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Finding the Fourth Proportional to 304,869.80, 457,304.70 and 80,264.90

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Solution

The fourth proportional to 304,869.80, 457,304.70 and 80,264.90 is: 120,397.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,869.80 : 457,304.70 = 80,264.90 : x
  2. Step 2: Convert to fraction form
    304,869.80/457,304.70 = 80,264.90/x
  3. Step 3: Cross multiply
    304,869.80x = 457,304.70 × 80,264.90
  4. Step 4: Simplify right side
    304,869.80x = 36,705,516,015.03
  5. Step 5: Solve for x
    x = 36,705,516,015.03/304,869.80
  6. Step 6: Final answer
    x = 120,397.35

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1.5x scale

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.