Home / 316,037.20-436,126.80-172,793.56

Finding the Fourth Proportional to 316,037.20, 436,126.80 and 172,793.56

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Solution

The fourth proportional to 316,037.20, 436,126.80 and 172,793.56 is: 238,452.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,037.20 : 436,126.80 = 172,793.56 : x
  2. Step 2: Convert to fraction form
    316,037.20/436,126.80 = 172,793.56/x
  3. Step 3: Cross multiply
    316,037.20x = 436,126.80 × 172,793.56
  4. Step 4: Simplify right side
    316,037.20x = 75,359,902,383.41
  5. Step 5: Solve for x
    x = 75,359,902,383.41/316,037.20
  6. Step 6: Final answer
    x = 238,452.63

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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.