Home / 206,494.16-309,675.60-140,359.28

Finding the Fourth Proportional to 206,494.16, 309,675.60 and 140,359.28

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Solution

The fourth proportional to 206,494.16, 309,675.60 and 140,359.28 is: 210,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,494.16 : 309,675.60 = 140,359.28 : x
  2. Step 2: Convert to fraction form
    206,494.16/309,675.60 = 140,359.28/x
  3. Step 3: Cross multiply
    206,494.16x = 309,675.60 × 140,359.28
  4. Step 4: Simplify right side
    206,494.16x = 43,465,842,701.19
  5. Step 5: Solve for x
    x = 43,465,842,701.19/206,494.16
  6. Step 6: Final answer
    x = 210,494.30

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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.