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Finding the Fourth Proportional to 371,301.75, 512,405.60 and 201,535.47

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Solution

The fourth proportional to 371,301.75, 512,405.60 and 201,535.47 is: 278,123.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,301.75 : 512,405.60 = 201,535.47 : x
  2. Step 2: Convert to fraction form
    371,301.75/512,405.60 = 201,535.47/x
  3. Step 3: Cross multiply
    371,301.75x = 512,405.60 × 201,535.47
  4. Step 4: Simplify right side
    371,301.75x = 103,267,902,418.96
  5. Step 5: Solve for x
    x = 103,267,902,418.96/371,301.75
  6. Step 6: Final answer
    x = 278,123.93

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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.