Home / 272,002.10-408,003.15-72,353.30

Finding the Fourth Proportional to 272,002.10, 408,003.15 and 72,353.30

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Solution

The fourth proportional to 272,002.10, 408,003.15 and 72,353.30 is: 108,529.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,002.10 : 408,003.15 = 72,353.30 : x
  2. Step 2: Convert to fraction form
    272,002.10/408,003.15 = 72,353.30/x
  3. Step 3: Cross multiply
    272,002.10x = 408,003.15 × 72,353.30
  4. Step 4: Simplify right side
    272,002.10x = 29,520,374,312.90
  5. Step 5: Solve for x
    x = 29,520,374,312.90/272,002.10
  6. Step 6: Final answer
    x = 108,529.95

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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.