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Finding the Fourth Proportional to 178,235.72, 267,353.46 and 71,619.69

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Solution

The fourth proportional to 178,235.72, 267,353.46 and 71,619.69 is: 107,429.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,235.72 : 267,353.46 = 71,619.69 : x
  2. Step 2: Convert to fraction form
    178,235.72/267,353.46 = 71,619.69/x
  3. Step 3: Cross multiply
    178,235.72x = 267,353.46 × 71,619.69
  4. Step 4: Simplify right side
    178,235.72x = 19,147,772,928.20
  5. Step 5: Solve for x
    x = 19,147,772,928.20/178,235.72
  6. Step 6: Final answer
    x = 107,429.49

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1.5x scale

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.