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Finding the Fourth Proportional to 371,520.39, 512,855.10 and 250,825.17

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Solution

The fourth proportional to 371,520.39, 512,855.10 and 250,825.17 is: 346,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,520.39 : 512,855.10 = 250,825.17 : x
  2. Step 2: Convert to fraction form
    371,520.39/512,855.10 = 250,825.17/x
  3. Step 3: Cross multiply
    371,520.39x = 512,855.10 × 250,825.17
  4. Step 4: Simplify right side
    371,520.39x = 128,636,967,642.87
  5. Step 5: Solve for x
    x = 128,636,967,642.87/371,520.39
  6. Step 6: Final answer
    x = 346,244.70

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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.