Home / 330,459.32-495,715.24-140,921.30

Finding the Fourth Proportional to 330,459.32, 495,715.24 and 140,921.30

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Solution

The fourth proportional to 330,459.32, 495,715.24 and 140,921.30 is: 211,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,459.32 : 495,715.24 = 140,921.30 : x
  2. Step 2: Convert to fraction form
    330,459.32/495,715.24 = 140,921.30/x
  3. Step 3: Cross multiply
    330,459.32x = 495,715.24 × 140,921.30
  4. Step 4: Simplify right side
    330,459.32x = 69,856,836,050.61
  5. Step 5: Solve for x
    x = 69,856,836,050.61/330,459.32
  6. Step 6: Final answer
    x = 211,393.15

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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.