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Finding the Fourth Proportional to 342,175.15, 512,901.87 and 142,294.29

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Solution

The fourth proportional to 342,175.15, 512,901.87 and 142,294.29 is: 213,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,175.15 : 512,901.87 = 142,294.29 : x
  2. Step 2: Convert to fraction form
    342,175.15/512,901.87 = 142,294.29/x
  3. Step 3: Cross multiply
    342,175.15x = 512,901.87 × 142,294.29
  4. Step 4: Simplify right side
    342,175.15x = 72,983,007,431.32
  5. Step 5: Solve for x
    x = 72,983,007,431.32/342,175.15
  6. Step 6: Final answer
    x = 213,291.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.