Home / 230,771.20-318,444.96-128,787.52

Finding the Fourth Proportional to 230,771.20, 318,444.96 and 128,787.52

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Solution

The fourth proportional to 230,771.20, 318,444.96 and 128,787.52 is: 177,716.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,771.20 : 318,444.96 = 128,787.52 : x
  2. Step 2: Convert to fraction form
    230,771.20/318,444.96 = 128,787.52/x
  3. Step 3: Cross multiply
    230,771.20x = 318,444.96 × 128,787.52
  4. Step 4: Simplify right side
    230,771.20x = 41,011,736,654.90
  5. Step 5: Solve for x
    x = 41,011,736,654.90/230,771.20
  6. Step 6: Final answer
    x = 177,716.01

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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.