Home / 284,278.40-425,899.20-231,401.60

Finding the Fourth Proportional to 284,278.40, 425,899.20 and 231,401.60

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Solution

The fourth proportional to 284,278.40, 425,899.20 and 231,401.60 is: 346,680.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,278.40 : 425,899.20 = 231,401.60 : x
  2. Step 2: Convert to fraction form
    284,278.40/425,899.20 = 231,401.60/x
  3. Step 3: Cross multiply
    284,278.40x = 425,899.20 × 231,401.60
  4. Step 4: Simplify right side
    284,278.40x = 98,553,756,318.72
  5. Step 5: Solve for x
    x = 98,553,756,318.72/284,278.40
  6. Step 6: Final answer
    x = 346,680.42

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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.