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Finding the Fourth Proportional to 454,515.56, 627,252.90 and 253,313

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Solution

The fourth proportional to 454,515.56, 627,252.90 and 253,313 is: 349,583.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,515.56 : 627,252.90 = 253,313 : x
  2. Step 2: Convert to fraction form
    454,515.56/627,252.90 = 253,313/x
  3. Step 3: Cross multiply
    454,515.56x = 627,252.90 × 253,313
  4. Step 4: Simplify right side
    454,515.56x = 158,891,313,857.70
  5. Step 5: Solve for x
    x = 158,891,313,857.70/454,515.56
  6. Step 6: Final answer
    x = 349,583.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.