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Finding the Fourth Proportional to 342,127.92, 472,117.46 and 189,157.26

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Solution

The fourth proportional to 342,127.92, 472,117.46 and 189,157.26 is: 261,026.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,127.92 : 472,117.46 = 189,157.26 : x
  2. Step 2: Convert to fraction form
    342,127.92/472,117.46 = 189,157.26/x
  3. Step 3: Cross multiply
    342,127.92x = 472,117.46 × 189,157.26
  4. Step 4: Simplify right side
    342,127.92x = 89,304,445,131.76
  5. Step 5: Solve for x
    x = 89,304,445,131.76/342,127.92
  6. Step 6: Final answer
    x = 261,026.48

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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.