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Finding the Fourth Proportional to 330,138.10, 496,264.20 and 306,737.20

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Solution

The fourth proportional to 330,138.10, 496,264.20 and 306,737.20 is: 461,087.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,138.10 : 496,264.20 = 306,737.20 : x
  2. Step 2: Convert to fraction form
    330,138.10/496,264.20 = 306,737.20/x
  3. Step 3: Cross multiply
    330,138.10x = 496,264.20 × 306,737.20
  4. Step 4: Simplify right side
    330,138.10x = 152,222,691,168.24
  5. Step 5: Solve for x
    x = 152,222,691,168.24/330,138.10
  6. Step 6: Final answer
    x = 461,087.92

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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.