Home / 206,819.15-310,228.73-135,960.35

Finding the Fourth Proportional to 206,819.15, 310,228.73 and 135,960.35

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Solution

The fourth proportional to 206,819.15, 310,228.73 and 135,960.35 is: 203,940.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,819.15 : 310,228.73 = 135,960.35 : x
  2. Step 2: Convert to fraction form
    206,819.15/310,228.73 = 135,960.35/x
  3. Step 3: Cross multiply
    206,819.15x = 310,228.73 × 135,960.35
  4. Step 4: Simplify right side
    206,819.15x = 42,178,806,710.86
  5. Step 5: Solve for x
    x = 42,178,806,710.86/206,819.15
  6. Step 6: Final answer
    x = 203,940.53

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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.