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Finding the Fourth Proportional to 408,988.08, 564,398.17 and 236,929.50

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Solution

The fourth proportional to 408,988.08, 564,398.17 and 236,929.50 is: 326,959.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,988.08 : 564,398.17 = 236,929.50 : x
  2. Step 2: Convert to fraction form
    408,988.08/564,398.17 = 236,929.50/x
  3. Step 3: Cross multiply
    408,988.08x = 564,398.17 × 236,929.50
  4. Step 4: Simplify right side
    408,988.08x = 133,722,576,219.02
  5. Step 5: Solve for x
    x = 133,722,576,219.02/408,988.08
  6. Step 6: Final answer
    x = 326,959.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.