Home / 206,504.24-309,314.10-101,103.80

Finding the Fourth Proportional to 206,504.24, 309,314.10 and 101,103.80

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Solution

The fourth proportional to 206,504.24, 309,314.10 and 101,103.80 is: 151,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,504.24 : 309,314.10 = 101,103.80 : x
  2. Step 2: Convert to fraction form
    206,504.24/309,314.10 = 101,103.80/x
  3. Step 3: Cross multiply
    206,504.24x = 309,314.10 × 101,103.80
  4. Step 4: Simplify right side
    206,504.24x = 31,272,830,903.58
  5. Step 5: Solve for x
    x = 31,272,830,903.58/206,504.24
  6. Step 6: Final answer
    x = 151,439.17

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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.