Home / 205,215.30-307,304.55-134,712.90

Finding the Fourth Proportional to 205,215.30, 307,304.55 and 134,712.90

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Solution

The fourth proportional to 205,215.30, 307,304.55 and 134,712.90 is: 201,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,215.30 : 307,304.55 = 134,712.90 : x
  2. Step 2: Convert to fraction form
    205,215.30/307,304.55 = 134,712.90/x
  3. Step 3: Cross multiply
    205,215.30x = 307,304.55 × 134,712.90
  4. Step 4: Simplify right side
    205,215.30x = 41,397,887,113.70
  5. Step 5: Solve for x
    x = 41,397,887,113.70/205,215.30
  6. Step 6: Final answer
    x = 201,729.05

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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.