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Finding the Fourth Proportional to 342,340.03, 472,392.66 and 189,353.89

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Solution

The fourth proportional to 342,340.03, 472,392.66 and 189,353.89 is: 261,288.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,340.03 : 472,392.66 = 189,353.89 : x
  2. Step 2: Convert to fraction form
    342,340.03/472,392.66 = 189,353.89/x
  3. Step 3: Cross multiply
    342,340.03x = 472,392.66 × 189,353.89
  4. Step 4: Simplify right side
    342,340.03x = 89,449,387,778.45
  5. Step 5: Solve for x
    x = 89,449,387,778.45/342,340.03
  6. Step 6: Final answer
    x = 261,288.13

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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.