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Finding the Fourth Proportional to 543,358.08, 815,080.32 and 169,384.32

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Solution

The fourth proportional to 543,358.08, 815,080.32 and 169,384.32 is: 254,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,358.08 : 815,080.32 = 169,384.32 : x
  2. Step 2: Convert to fraction form
    543,358.08/815,080.32 = 169,384.32/x
  3. Step 3: Cross multiply
    543,358.08x = 815,080.32 × 169,384.32
  4. Step 4: Simplify right side
    543,358.08x = 138,061,825,748.58
  5. Step 5: Solve for x
    x = 138,061,825,748.58/543,358.08
  6. Step 6: Final answer
    x = 254,089.95

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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.