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Finding the Fourth Proportional to 482,081.80, 723,264.14 and 215,783.06

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Solution

The fourth proportional to 482,081.80, 723,264.14 and 215,783.06 is: 323,737.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,081.80 : 723,264.14 = 215,783.06 : x
  2. Step 2: Convert to fraction form
    482,081.80/723,264.14 = 215,783.06/x
  3. Step 3: Cross multiply
    482,081.80x = 723,264.14 × 215,783.06
  4. Step 4: Simplify right side
    482,081.80x = 156,068,149,317.47
  5. Step 5: Solve for x
    x = 156,068,149,317.47/482,081.80
  6. Step 6: Final answer
    x = 323,737.90

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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.