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Finding the Fourth Proportional to 342,758.88, 472,996.80 and 197,565.12

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Solution

The fourth proportional to 342,758.88, 472,996.80 and 197,565.12 is: 272,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,758.88 : 472,996.80 = 197,565.12 : x
  2. Step 2: Convert to fraction form
    342,758.88/472,996.80 = 197,565.12/x
  3. Step 3: Cross multiply
    342,758.88x = 472,996.80 × 197,565.12
  4. Step 4: Simplify right side
    342,758.88x = 93,447,669,551.62
  5. Step 5: Solve for x
    x = 93,447,669,551.62/342,758.88
  6. Step 6: Final answer
    x = 272,633.84

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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.