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Finding the Fourth Proportional to 360,221.18, 540,270.27 and 120,301.88

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Solution

The fourth proportional to 360,221.18, 540,270.27 and 120,301.88 is: 180,432.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,221.18 : 540,270.27 = 120,301.88 : x
  2. Step 2: Convert to fraction form
    360,221.18/540,270.27 = 120,301.88/x
  3. Step 3: Cross multiply
    360,221.18x = 540,270.27 × 120,301.88
  4. Step 4: Simplify right side
    360,221.18x = 64,995,526,487.76
  5. Step 5: Solve for x
    x = 64,995,526,487.76/360,221.18
  6. Step 6: Final answer
    x = 180,432.28

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1.5x scale

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.