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Finding the Fourth Proportional to 342,630.32, 472,836.12 and 191,726.96

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Solution

The fourth proportional to 342,630.32, 472,836.12 and 191,726.96 is: 264,586.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,630.32 : 472,836.12 = 191,726.96 : x
  2. Step 2: Convert to fraction form
    342,630.32/472,836.12 = 191,726.96/x
  3. Step 3: Cross multiply
    342,630.32x = 472,836.12 × 191,726.96
  4. Step 4: Simplify right side
    342,630.32x = 90,655,431,865.80
  5. Step 5: Solve for x
    x = 90,655,431,865.80/342,630.32
  6. Step 6: Final answer
    x = 264,586.72

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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.