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Finding the Fourth Proportional to 360,351.60, 540,593.28 and 120,442.80

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Solution

The fourth proportional to 360,351.60, 540,593.28 and 120,442.80 is: 180,686.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,351.60 : 540,593.28 = 120,442.80 : x
  2. Step 2: Convert to fraction form
    360,351.60/540,593.28 = 120,442.80/x
  3. Step 3: Cross multiply
    360,351.60x = 540,593.28 × 120,442.80
  4. Step 4: Simplify right side
    360,351.60x = 65,110,568,304.38
  5. Step 5: Solve for x
    x = 65,110,568,304.38/360,351.60
  6. Step 6: Final answer
    x = 180,686.22

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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.