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Finding the Fourth Proportional to 172,854.80, 259,282.20 and 163,013.30

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Solution

The fourth proportional to 172,854.80, 259,282.20 and 163,013.30 is: 244,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,854.80 : 259,282.20 = 163,013.30 : x
  2. Step 2: Convert to fraction form
    172,854.80/259,282.20 = 163,013.30/x
  3. Step 3: Cross multiply
    172,854.80x = 259,282.20 × 163,013.30
  4. Step 4: Simplify right side
    172,854.80x = 42,266,447,053.26
  5. Step 5: Solve for x
    x = 42,266,447,053.26/172,854.80
  6. Step 6: Final answer
    x = 244,519.95

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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.