Home / 311,724.12-430,170.63-175,756.86

Finding the Fourth Proportional to 311,724.12, 430,170.63 and 175,756.86

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Solution

The fourth proportional to 311,724.12, 430,170.63 and 175,756.86 is: 242,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,724.12 : 430,170.63 = 175,756.86 : x
  2. Step 2: Convert to fraction form
    311,724.12/430,170.63 = 175,756.86/x
  3. Step 3: Cross multiply
    311,724.12x = 430,170.63 × 175,756.86
  4. Step 4: Simplify right side
    311,724.12x = 75,605,439,193.02
  5. Step 5: Solve for x
    x = 75,605,439,193.02/311,724.12
  6. Step 6: Final answer
    x = 242,539.59

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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.