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Finding the Fourth Proportional to 371,865.01, 512,998.42 and 269,666.28

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Solution

The fourth proportional to 371,865.01, 512,998.42 and 269,666.28 is: 372,012.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,865.01 : 512,998.42 = 269,666.28 : x
  2. Step 2: Convert to fraction form
    371,865.01/512,998.42 = 269,666.28/x
  3. Step 3: Cross multiply
    371,865.01x = 512,998.42 × 269,666.28
  4. Step 4: Simplify right side
    371,865.01x = 138,338,375,567.28
  5. Step 5: Solve for x
    x = 138,338,375,567.28/371,865.01
  6. Step 6: Final answer
    x = 372,012.35

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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.