Home / 205,008.10-307,512.15-121,027.30

Finding the Fourth Proportional to 205,008.10, 307,512.15 and 121,027.30

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Solution

The fourth proportional to 205,008.10, 307,512.15 and 121,027.30 is: 181,540.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,008.10 : 307,512.15 = 121,027.30 : x
  2. Step 2: Convert to fraction form
    205,008.10/307,512.15 = 121,027.30/x
  3. Step 3: Cross multiply
    205,008.10x = 307,512.15 × 121,027.30
  4. Step 4: Simplify right side
    205,008.10x = 37,217,365,231.70
  5. Step 5: Solve for x
    x = 37,217,365,231.70/205,008.10
  6. Step 6: Final answer
    x = 181,540.95

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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.