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Finding the Fourth Proportional to 206,610.70, 310,098.30 and 122,265.40

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Solution

The fourth proportional to 206,610.70, 310,098.30 and 122,265.40 is: 183,505.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,610.70 : 310,098.30 = 122,265.40 : x
  2. Step 2: Convert to fraction form
    206,610.70/310,098.30 = 122,265.40/x
  3. Step 3: Cross multiply
    206,610.70x = 310,098.30 × 122,265.40
  4. Step 4: Simplify right side
    206,610.70x = 37,914,292,688.82
  5. Step 5: Solve for x
    x = 37,914,292,688.82/206,610.70
  6. Step 6: Final answer
    x = 183,505.95

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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.