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Finding the Fourth Proportional to 371,263.52, 512,343.38 and 201,497.78

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Solution

The fourth proportional to 371,263.52, 512,343.38 and 201,497.78 is: 278,066.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,263.52 : 512,343.38 = 201,497.78 : x
  2. Step 2: Convert to fraction form
    371,263.52/512,343.38 = 201,497.78/x
  3. Step 3: Cross multiply
    371,263.52x = 512,343.38 × 201,497.78
  4. Step 4: Simplify right side
    371,263.52x = 103,236,053,667.70
  5. Step 5: Solve for x
    x = 103,236,053,667.70/371,263.52
  6. Step 6: Final answer
    x = 278,066.79

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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.