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Finding the Fourth Proportional to 342,247.40, 472,282.82 and 189,276.66

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Solution

The fourth proportional to 342,247.40, 472,282.82 and 189,276.66 is: 261,191.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,247.40 : 472,282.82 = 189,276.66 : x
  2. Step 2: Convert to fraction form
    342,247.40/472,282.82 = 189,276.66/x
  3. Step 3: Cross multiply
    342,247.40x = 472,282.82 × 189,276.66
  4. Step 4: Simplify right side
    342,247.40x = 89,392,114,508.39
  5. Step 5: Solve for x
    x = 89,392,114,508.39/342,247.40
  6. Step 6: Final answer
    x = 261,191.51

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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.