Home / 320,686.98-442,541.79-177,447.12

Finding the Fourth Proportional to 320,686.98, 442,541.79 and 177,447.12

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Solution

The fourth proportional to 320,686.98, 442,541.79 and 177,447.12 is: 244,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,686.98 : 442,541.79 = 177,447.12 : x
  2. Step 2: Convert to fraction form
    320,686.98/442,541.79 = 177,447.12/x
  3. Step 3: Cross multiply
    320,686.98x = 442,541.79 × 177,447.12
  4. Step 4: Simplify right side
    320,686.98x = 78,527,766,115.14
  5. Step 5: Solve for x
    x = 78,527,766,115.14/320,686.98
  6. Step 6: Final answer
    x = 244,873.57

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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.