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Finding the Fourth Proportional to 148,495.66, 222,211.39 and 128,573.88

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Solution

The fourth proportional to 148,495.66, 222,211.39 and 128,573.88 is: 192,400.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,495.66 : 222,211.39 = 128,573.88 : x
  2. Step 2: Convert to fraction form
    148,495.66/222,211.39 = 128,573.88/x
  3. Step 3: Cross multiply
    148,495.66x = 222,211.39 × 128,573.88
  4. Step 4: Simplify right side
    148,495.66x = 28,570,580,592.49
  5. Step 5: Solve for x
    x = 28,570,580,592.49/148,495.66
  6. Step 6: Final answer
    x = 192,400.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.