Home / 312,884.42-431,777.85-176,945.04

Finding the Fourth Proportional to 312,884.42, 431,777.85 and 176,945.04

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Solution

The fourth proportional to 312,884.42, 431,777.85 and 176,945.04 is: 244,182.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,884.42 : 431,777.85 = 176,945.04 : x
  2. Step 2: Convert to fraction form
    312,884.42/431,777.85 = 176,945.04/x
  3. Step 3: Cross multiply
    312,884.42x = 431,777.85 × 176,945.04
  4. Step 4: Simplify right side
    312,884.42x = 76,400,948,939.36
  5. Step 5: Solve for x
    x = 76,400,948,939.36/312,884.42
  6. Step 6: Final answer
    x = 244,182.66

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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.