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Finding the Fourth Proportional to 221,352.52, 305,466.52 and 125,865.07

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Solution

The fourth proportional to 221,352.52, 305,466.52 and 125,865.07 is: 173,693.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,352.52 : 305,466.52 = 125,865.07 : x
  2. Step 2: Convert to fraction form
    221,352.52/305,466.52 = 125,865.07/x
  3. Step 3: Cross multiply
    221,352.52x = 305,466.52 × 125,865.07
  4. Step 4: Simplify right side
    221,352.52x = 38,447,564,922.46
  5. Step 5: Solve for x
    x = 38,447,564,922.46/221,352.52
  6. Step 6: Final answer
    x = 173,693.82

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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.