Home / 206,824.20-310,236.30-135,965.40

Finding the Fourth Proportional to 206,824.20, 310,236.30 and 135,965.40

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Solution

The fourth proportional to 206,824.20, 310,236.30 and 135,965.40 is: 203,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,824.20 : 310,236.30 = 135,965.40 : x
  2. Step 2: Convert to fraction form
    206,824.20/310,236.30 = 135,965.40/x
  3. Step 3: Cross multiply
    206,824.20x = 310,236.30 × 135,965.40
  4. Step 4: Simplify right side
    206,824.20x = 42,181,402,624.02
  5. Step 5: Solve for x
    x = 42,181,402,624.02/206,824.20
  6. Step 6: Final answer
    x = 203,948.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.