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Finding the Fourth Proportional to 454,290.75, 626,934.20 and 253,099.71

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Solution

The fourth proportional to 454,290.75, 626,934.20 and 253,099.71 is: 349,284.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,290.75 : 626,934.20 = 253,099.71 : x
  2. Step 2: Convert to fraction form
    454,290.75/626,934.20 = 253,099.71/x
  3. Step 3: Cross multiply
    454,290.75x = 626,934.20 × 253,099.71
  4. Step 4: Simplify right side
    454,290.75x = 158,676,862,943.58
  5. Step 5: Solve for x
    x = 158,676,862,943.58/454,290.75
  6. Step 6: Final answer
    x = 349,284.82

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Double scale
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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.