Home / 206,300.61-309,453.66-66,059.25

Finding the Fourth Proportional to 206,300.61, 309,453.66 and 66,059.25

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Solution

The fourth proportional to 206,300.61, 309,453.66 and 66,059.25 is: 99,089.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,300.61 : 309,453.66 = 66,059.25 : x
  2. Step 2: Convert to fraction form
    206,300.61/309,453.66 = 66,059.25/x
  3. Step 3: Cross multiply
    206,300.61x = 309,453.66 × 66,059.25
  4. Step 4: Simplify right side
    206,300.61x = 20,442,276,689.36
  5. Step 5: Solve for x
    x = 20,442,276,689.36/206,300.61
  6. Step 6: Final answer
    x = 99,089.75

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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.