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Finding the Fourth Proportional to 360,363.60, 540,611.28 and 120,454.80

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Solution

The fourth proportional to 360,363.60, 540,611.28 and 120,454.80 is: 180,704.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,363.60 : 540,611.28 = 120,454.80 : x
  2. Step 2: Convert to fraction form
    360,363.60/540,611.28 = 120,454.80/x
  3. Step 3: Cross multiply
    360,363.60x = 540,611.28 × 120,454.80
  4. Step 4: Simplify right side
    360,363.60x = 65,119,223,610.14
  5. Step 5: Solve for x
    x = 65,119,223,610.14/360,363.60
  6. Step 6: Final answer
    x = 180,704.22

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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.