Home / 206,822.20-310,233.30-135,963.40

Finding the Fourth Proportional to 206,822.20, 310,233.30 and 135,963.40

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Solution

The fourth proportional to 206,822.20, 310,233.30 and 135,963.40 is: 203,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,822.20 : 310,233.30 = 135,963.40 : x
  2. Step 2: Convert to fraction form
    206,822.20/310,233.30 = 135,963.40/x
  3. Step 3: Cross multiply
    206,822.20x = 310,233.30 × 135,963.40
  4. Step 4: Simplify right side
    206,822.20x = 42,180,374,261.22
  5. Step 5: Solve for x
    x = 42,180,374,261.22/206,822.20
  6. Step 6: Final answer
    x = 203,945.10

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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.