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Finding the Fourth Proportional to 272,254.30, 408,400.90 and 72,573.64

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Solution

The fourth proportional to 272,254.30, 408,400.90 and 72,573.64 is: 108,865.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,254.30 : 408,400.90 = 72,573.64 : x
  2. Step 2: Convert to fraction form
    272,254.30/408,400.90 = 72,573.64/x
  3. Step 3: Cross multiply
    272,254.30x = 408,400.90 × 72,573.64
  4. Step 4: Simplify right side
    272,254.30x = 29,639,139,892.28
  5. Step 5: Solve for x
    x = 29,639,139,892.28/272,254.30
  6. Step 6: Final answer
    x = 108,865.64

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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.