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Finding the Fourth Proportional to 322,522.61, 481,062.80 and 280,068.83

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Solution

The fourth proportional to 322,522.61, 481,062.80 and 280,068.83 is: 417,740.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,522.61 : 481,062.80 = 280,068.83 : x
  2. Step 2: Convert to fraction form
    322,522.61/481,062.80 = 280,068.83/x
  3. Step 3: Cross multiply
    322,522.61x = 481,062.80 × 280,068.83
  4. Step 4: Simplify right side
    322,522.61x = 134,730,691,746.87
  5. Step 5: Solve for x
    x = 134,730,691,746.87/322,522.61
  6. Step 6: Final answer
    x = 417,740.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.