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Finding the Fourth Proportional to 273,548.80, 410,438.40 and 148,979.20

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Solution

The fourth proportional to 273,548.80, 410,438.40 and 148,979.20 is: 223,531.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,548.80 : 410,438.40 = 148,979.20 : x
  2. Step 2: Convert to fraction form
    273,548.80/410,438.40 = 148,979.20/x
  3. Step 3: Cross multiply
    273,548.80x = 410,438.40 × 148,979.20
  4. Step 4: Simplify right side
    273,548.80x = 61,146,784,481.28
  5. Step 5: Solve for x
    x = 61,146,784,481.28/273,548.80
  6. Step 6: Final answer
    x = 223,531.54

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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.