Home / 330,360.70-495,541.06-143,372.20

Finding the Fourth Proportional to 330,360.70, 495,541.06 and 143,372.20

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Solution

The fourth proportional to 330,360.70, 495,541.06 and 143,372.20 is: 215,058.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,360.70 : 495,541.06 = 143,372.20 : x
  2. Step 2: Convert to fraction form
    330,360.70/495,541.06 = 143,372.20/x
  3. Step 3: Cross multiply
    330,360.70x = 495,541.06 × 143,372.20
  4. Step 4: Simplify right side
    330,360.70x = 71,046,811,962.53
  5. Step 5: Solve for x
    x = 71,046,811,962.53/330,360.70
  6. Step 6: Final answer
    x = 215,058.30

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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.