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Finding the Fourth Proportional to 342,952.31, 473,273.28 and 189,990.80

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Solution

The fourth proportional to 342,952.31, 473,273.28 and 189,990.80 is: 262,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,952.31 : 473,273.28 = 189,990.80 : x
  2. Step 2: Convert to fraction form
    342,952.31/473,273.28 = 189,990.80/x
  3. Step 3: Cross multiply
    342,952.31x = 473,273.28 × 189,990.80
  4. Step 4: Simplify right side
    342,952.31x = 89,917,568,494.23
  5. Step 5: Solve for x
    x = 89,917,568,494.23/342,952.31
  6. Step 6: Final answer
    x = 262,186.80

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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.