Home / 292,127.12-403,138.32-171,339.92

Finding the Fourth Proportional to 292,127.12, 403,138.32 and 171,339.92

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Solution

The fourth proportional to 292,127.12, 403,138.32 and 171,339.92 is: 236,450.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,127.12 : 403,138.32 = 171,339.92 : x
  2. Step 2: Convert to fraction form
    292,127.12/403,138.32 = 171,339.92/x
  3. Step 3: Cross multiply
    292,127.12x = 403,138.32 × 171,339.92
  4. Step 4: Simplify right side
    292,127.12x = 69,073,687,497.73
  5. Step 5: Solve for x
    x = 69,073,687,497.73/292,127.12
  6. Step 6: Final answer
    x = 236,450.79

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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.