Home / 272,003.10-408,004.65-72,354.30

Finding the Fourth Proportional to 272,003.10, 408,004.65 and 72,354.30

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Solution

The fourth proportional to 272,003.10, 408,004.65 and 72,354.30 is: 108,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,003.10 : 408,004.65 = 72,354.30 : x
  2. Step 2: Convert to fraction form
    272,003.10/408,004.65 = 72,354.30/x
  3. Step 3: Cross multiply
    272,003.10x = 408,004.65 × 72,354.30
  4. Step 4: Simplify right side
    272,003.10x = 29,520,890,847.50
  5. Step 5: Solve for x
    x = 29,520,890,847.50/272,003.10
  6. Step 6: Final answer
    x = 108,531.45

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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.