Home / 312,612.15-431,398.83-174,790.47

Finding the Fourth Proportional to 312,612.15, 431,398.83 and 174,790.47

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Solution

The fourth proportional to 312,612.15, 431,398.83 and 174,790.47 is: 241,207.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,612.15 : 431,398.83 = 174,790.47 : x
  2. Step 2: Convert to fraction form
    312,612.15/431,398.83 = 174,790.47/x
  3. Step 3: Cross multiply
    312,612.15x = 431,398.83 × 174,790.47
  4. Step 4: Simplify right side
    312,612.15x = 75,404,404,253.15
  5. Step 5: Solve for x
    x = 75,404,404,253.15/312,612.15
  6. Step 6: Final answer
    x = 241,207.53

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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.