Home / 311,759.12-430,191.02-175,784.96

Finding the Fourth Proportional to 311,759.12, 430,191.02 and 175,784.96

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Solution

The fourth proportional to 311,759.12, 430,191.02 and 175,784.96 is: 242,562.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,759.12 : 430,191.02 = 175,784.96 : x
  2. Step 2: Convert to fraction form
    311,759.12/430,191.02 = 175,784.96/x
  3. Step 3: Cross multiply
    311,759.12x = 430,191.02 × 175,784.96
  4. Step 4: Simplify right side
    311,759.12x = 75,621,112,758.00
  5. Step 5: Solve for x
    x = 75,621,112,758.00/311,759.12
  6. Step 6: Final answer
    x = 242,562.63

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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.