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Finding the Fourth Proportional to 221,374.52, 305,495.44 and 125,881.24

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Solution

The fourth proportional to 221,374.52, 305,495.44 and 125,881.24 is: 173,715.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,374.52 : 305,495.44 = 125,881.24 : x
  2. Step 2: Convert to fraction form
    221,374.52/305,495.44 = 125,881.24/x
  3. Step 3: Cross multiply
    221,374.52x = 305,495.44 × 125,881.24
  4. Step 4: Simplify right side
    221,374.52x = 38,456,144,801.55
  5. Step 5: Solve for x
    x = 38,456,144,801.55/221,374.52
  6. Step 6: Final answer
    x = 173,715.32

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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.