Home / 320,931.88-442,899.83-177,691.92

Finding the Fourth Proportional to 320,931.88, 442,899.83 and 177,691.92

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Solution

The fourth proportional to 320,931.88, 442,899.83 and 177,691.92 is: 245,222.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,931.88 : 442,899.83 = 177,691.92 : x
  2. Step 2: Convert to fraction form
    320,931.88/442,899.83 = 177,691.92/x
  3. Step 3: Cross multiply
    320,931.88x = 442,899.83 × 177,691.92
  4. Step 4: Simplify right side
    320,931.88x = 78,699,721,160.37
  5. Step 5: Solve for x
    x = 78,699,721,160.37/320,931.88
  6. Step 6: Final answer
    x = 245,222.51

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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.