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Finding the Fourth Proportional to 342,367.36, 472,480.90 and 189,402.91

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Solution

The fourth proportional to 342,367.36, 472,480.90 and 189,402.91 is: 261,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,367.36 : 472,480.90 = 189,402.91 : x
  2. Step 2: Convert to fraction form
    342,367.36/472,480.90 = 189,402.91/x
  3. Step 3: Cross multiply
    342,367.36x = 472,480.90 × 189,402.91
  4. Step 4: Simplify right side
    342,367.36x = 89,489,255,724.71
  5. Step 5: Solve for x
    x = 89,489,255,724.71/342,367.36
  6. Step 6: Final answer
    x = 261,383.73

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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.