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Finding the Fourth Proportional to 543,808.64, 815,600.88 and 206,731.04

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Solution

The fourth proportional to 543,808.64, 815,600.88 and 206,731.04 is: 310,053.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,808.64 : 815,600.88 = 206,731.04 : x
  2. Step 2: Convert to fraction form
    543,808.64/815,600.88 = 206,731.04/x
  3. Step 3: Cross multiply
    543,808.64x = 815,600.88 × 206,731.04
  4. Step 4: Simplify right side
    543,808.64x = 168,610,018,147.32
  5. Step 5: Solve for x
    x = 168,610,018,147.32/543,808.64
  6. Step 6: Final answer
    x = 310,053.95

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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.