Home / 331,931.16-458,062.92-188,691.21

Finding the Fourth Proportional to 331,931.16, 458,062.92 and 188,691.21

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Solution

The fourth proportional to 331,931.16, 458,062.92 and 188,691.21 is: 260,392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,931.16 : 458,062.92 = 188,691.21 : x
  2. Step 2: Convert to fraction form
    331,931.16/458,062.92 = 188,691.21/x
  3. Step 3: Cross multiply
    331,931.16x = 458,062.92 × 188,691.21
  4. Step 4: Simplify right side
    331,931.16x = 86,432,446,630.93
  5. Step 5: Solve for x
    x = 86,432,446,630.93/331,931.16
  6. Step 6: Final answer
    x = 260,392.69

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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.