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Finding the Fourth Proportional to 342,122.66, 472,110.22 and 189,151.93

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Solution

The fourth proportional to 342,122.66, 472,110.22 and 189,151.93 is: 261,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,122.66 : 472,110.22 = 189,151.93 : x
  2. Step 2: Convert to fraction form
    342,122.66/472,110.22 = 189,151.93/x
  3. Step 3: Cross multiply
    342,122.66x = 472,110.22 × 189,151.93
  4. Step 4: Simplify right side
    342,122.66x = 89,300,561,440.11
  5. Step 5: Solve for x
    x = 89,300,561,440.11/342,122.66
  6. Step 6: Final answer
    x = 261,019.14

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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.