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Finding the Fourth Proportional to 342,707.92, 472,932.04 and 189,731.44

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Solution

The fourth proportional to 342,707.92, 472,932.04 and 189,731.44 is: 261,826.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,707.92 : 472,932.04 = 189,731.44 : x
  2. Step 2: Convert to fraction form
    342,707.92/472,932.04 = 189,731.44/x
  3. Step 3: Cross multiply
    342,707.92x = 472,932.04 × 189,731.44
  4. Step 4: Simplify right side
    342,707.92x = 89,730,076,971.34
  5. Step 5: Solve for x
    x = 89,730,076,971.34/342,707.92
  6. Step 6: Final answer
    x = 261,826.68

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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.