Home / 311,766.04-430,221-175,796.20

Finding the Fourth Proportional to 311,766.04, 430,221 and 175,796.20

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Solution

The fourth proportional to 311,766.04, 430,221 and 175,796.20 is: 242,589.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,766.04 : 430,221 = 175,796.20 : x
  2. Step 2: Convert to fraction form
    311,766.04/430,221 = 175,796.20/x
  3. Step 3: Cross multiply
    311,766.04x = 430,221 × 175,796.20
  4. Step 4: Simplify right side
    311,766.04x = 75,631,216,960.20
  5. Step 5: Solve for x
    x = 75,631,216,960.20/311,766.04
  6. Step 6: Final answer
    x = 242,589.66

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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.