Home / 221,087.25-305,149.65-140,499.06

Finding the Fourth Proportional to 221,087.25, 305,149.65 and 140,499.06

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Solution

The fourth proportional to 221,087.25, 305,149.65 and 140,499.06 is: 193,920.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,087.25 : 305,149.65 = 140,499.06 : x
  2. Step 2: Convert to fraction form
    221,087.25/305,149.65 = 140,499.06/x
  3. Step 3: Cross multiply
    221,087.25x = 305,149.65 × 140,499.06
  4. Step 4: Simplify right side
    221,087.25x = 42,873,238,984.33
  5. Step 5: Solve for x
    x = 42,873,238,984.33/221,087.25
  6. Step 6: Final answer
    x = 193,920.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.