Home / 330,422.60-495,288.30-180,432.20

Finding the Fourth Proportional to 330,422.60, 495,288.30 and 180,432.20

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Solution

The fourth proportional to 330,422.60, 495,288.30 and 180,432.20 is: 270,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,422.60 : 495,288.30 = 180,432.20 : x
  2. Step 2: Convert to fraction form
    330,422.60/495,288.30 = 180,432.20/x
  3. Step 3: Cross multiply
    330,422.60x = 495,288.30 × 180,432.20
  4. Step 4: Simplify right side
    330,422.60x = 89,365,957,603.26
  5. Step 5: Solve for x
    x = 89,365,957,603.26/330,422.60
  6. Step 6: Final answer
    x = 270,459.58

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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.