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Finding the Fourth Proportional to 268,269.56, 370,211.90 and 147,418.64

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Solution

The fourth proportional to 268,269.56, 370,211.90 and 147,418.64 is: 203,437.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,269.56 : 370,211.90 = 147,418.64 : x
  2. Step 2: Convert to fraction form
    268,269.56/370,211.90 = 147,418.64/x
  3. Step 3: Cross multiply
    268,269.56x = 370,211.90 × 147,418.64
  4. Step 4: Simplify right side
    268,269.56x = 54,576,132,221.66
  5. Step 5: Solve for x
    x = 54,576,132,221.66/268,269.56
  6. Step 6: Final answer
    x = 203,437.66

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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.