Home / 306,568.20-423,077.94-172,432.20

Finding the Fourth Proportional to 306,568.20, 423,077.94 and 172,432.20

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Solution

The fourth proportional to 306,568.20, 423,077.94 and 172,432.20 is: 237,964.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,568.20 : 423,077.94 = 172,432.20 : x
  2. Step 2: Convert to fraction form
    306,568.20/423,077.94 = 172,432.20/x
  3. Step 3: Cross multiply
    306,568.20x = 423,077.94 × 172,432.20
  4. Step 4: Simplify right side
    306,568.20x = 72,952,259,965.67
  5. Step 5: Solve for x
    x = 72,952,259,965.67/306,568.20
  6. Step 6: Final answer
    x = 237,964.21

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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.