Home / 206,487.12-309,665.06-140,352.24

Finding the Fourth Proportional to 206,487.12, 309,665.06 and 140,352.24

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Solution

The fourth proportional to 206,487.12, 309,665.06 and 140,352.24 is: 210,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,487.12 : 309,665.06 = 140,352.24 : x
  2. Step 2: Convert to fraction form
    206,487.12/309,665.06 = 140,352.24/x
  3. Step 3: Cross multiply
    206,487.12x = 309,665.06 × 140,352.24
  4. Step 4: Simplify right side
    206,487.12x = 43,462,185,806.54
  5. Step 5: Solve for x
    x = 43,462,185,806.54/206,487.12
  6. Step 6: Final answer
    x = 210,483.76

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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.