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Finding the Fourth Proportional to 174,013.20, 261,019.80 and 154,184.40

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Solution

The fourth proportional to 174,013.20, 261,019.80 and 154,184.40 is: 231,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,013.20 : 261,019.80 = 154,184.40 : x
  2. Step 2: Convert to fraction form
    174,013.20/261,019.80 = 154,184.40/x
  3. Step 3: Cross multiply
    174,013.20x = 261,019.80 × 154,184.40
  4. Step 4: Simplify right side
    174,013.20x = 40,245,181,251.12
  5. Step 5: Solve for x
    x = 40,245,181,251.12/174,013.20
  6. Step 6: Final answer
    x = 231,276.60

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