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Finding the Fourth Proportional to 371,302.62, 512,398.20 and 201,536.82

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Solution

The fourth proportional to 371,302.62, 512,398.20 and 201,536.82 is: 278,121.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,302.62 : 512,398.20 = 201,536.82 : x
  2. Step 2: Convert to fraction form
    371,302.62/512,398.20 = 201,536.82/x
  3. Step 3: Cross multiply
    371,302.62x = 512,398.20 × 201,536.82
  4. Step 4: Simplify right side
    371,302.62x = 103,267,103,801.72
  5. Step 5: Solve for x
    x = 103,267,103,801.72/371,302.62
  6. Step 6: Final answer
    x = 278,121.13

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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.