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Finding the Fourth Proportional to 221,125.06, 305,150.06 and 125,629.72

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Solution

The fourth proportional to 221,125.06, 305,150.06 and 125,629.72 is: 173,367.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,125.06 : 305,150.06 = 125,629.72 : x
  2. Step 2: Convert to fraction form
    221,125.06/305,150.06 = 125,629.72/x
  3. Step 3: Cross multiply
    221,125.06x = 305,150.06 × 125,629.72
  4. Step 4: Simplify right side
    221,125.06x = 38,335,916,595.78
  5. Step 5: Solve for x
    x = 38,335,916,595.78/221,125.06
  6. Step 6: Final answer
    x = 173,367.58

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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.