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Finding the Fourth Proportional to 342,341.54, 472,422.49 and 189,375.74

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Solution

The fourth proportional to 342,341.54, 472,422.49 and 189,375.74 is: 261,333.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,341.54 : 472,422.49 = 189,375.74 : x
  2. Step 2: Convert to fraction form
    342,341.54/472,422.49 = 189,375.74/x
  3. Step 3: Cross multiply
    342,341.54x = 472,422.49 × 189,375.74
  4. Step 4: Simplify right side
    342,341.54x = 89,465,358,636.39
  5. Step 5: Solve for x
    x = 89,465,358,636.39/342,341.54
  6. Step 6: Final answer
    x = 261,333.63

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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.