Home / 221,287.20-305,394.48-125,823.84

Finding the Fourth Proportional to 221,287.20, 305,394.48 and 125,823.84

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Solution

The fourth proportional to 221,287.20, 305,394.48 and 125,823.84 is: 173,647.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,287.20 : 305,394.48 = 125,823.84 : x
  2. Step 2: Convert to fraction form
    221,287.20/305,394.48 = 125,823.84/x
  3. Step 3: Cross multiply
    221,287.20x = 305,394.48 × 125,823.84
  4. Step 4: Simplify right side
    221,287.20x = 38,425,906,188.40
  5. Step 5: Solve for x
    x = 38,425,906,188.40/221,287.20
  6. Step 6: Final answer
    x = 173,647.22

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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.