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Finding the Fourth Proportional to 356,145.66, 491,481.12 and 195,010.92

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Solution

The fourth proportional to 356,145.66, 491,481.12 and 195,010.92 is: 269,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,145.66 : 491,481.12 = 195,010.92 : x
  2. Step 2: Convert to fraction form
    356,145.66/491,481.12 = 195,010.92/x
  3. Step 3: Cross multiply
    356,145.66x = 491,481.12 × 195,010.92
  4. Step 4: Simplify right side
    356,145.66x = 95,844,185,373.83
  5. Step 5: Solve for x
    x = 95,844,185,373.83/356,145.66
  6. Step 6: Final answer
    x = 269,115.13

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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.