Home / 221,100.33-305,119.47-125,612.27

Finding the Fourth Proportional to 221,100.33, 305,119.47 and 125,612.27

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Solution

The fourth proportional to 221,100.33, 305,119.47 and 125,612.27 is: 173,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,100.33 : 305,119.47 = 125,612.27 : x
  2. Step 2: Convert to fraction form
    221,100.33/305,119.47 = 125,612.27/x
  3. Step 3: Cross multiply
    221,100.33x = 305,119.47 × 125,612.27
  4. Step 4: Simplify right side
    221,100.33x = 38,326,749,337.54
  5. Step 5: Solve for x
    x = 38,326,749,337.54/221,100.33
  6. Step 6: Final answer
    x = 173,345.51

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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.