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Finding the Fourth Proportional to 342,152.88, 472,156.92 and 189,181.32

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Solution

The fourth proportional to 342,152.88, 472,156.92 and 189,181.32 is: 261,062.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,152.88 : 472,156.92 = 189,181.32 : x
  2. Step 2: Convert to fraction form
    342,152.88/472,156.92 = 189,181.32/x
  3. Step 3: Cross multiply
    342,152.88x = 472,156.92 × 189,181.32
  4. Step 4: Simplify right side
    342,152.88x = 89,323,269,372.73
  5. Step 5: Solve for x
    x = 89,323,269,372.73/342,152.88
  6. Step 6: Final answer
    x = 261,062.45

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1.5x scale

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.