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Finding the Fourth Proportional to 206,574.90, 309,862.35 and 73,605.30

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Solution

The fourth proportional to 206,574.90, 309,862.35 and 73,605.30 is: 110,407.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,574.90 : 309,862.35 = 73,605.30 : x
  2. Step 2: Convert to fraction form
    206,574.90/309,862.35 = 73,605.30/x
  3. Step 3: Cross multiply
    206,574.90x = 309,862.35 × 73,605.30
  4. Step 4: Simplify right side
    206,574.90x = 22,807,511,230.46
  5. Step 5: Solve for x
    x = 22,807,511,230.46/206,574.90
  6. Step 6: Final answer
    x = 110,407.95

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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.