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Finding the Fourth Proportional to 238,251.87, 357,431.27 and 80,476.29

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Solution

The fourth proportional to 238,251.87, 357,431.27 and 80,476.29 is: 120,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,251.87 : 357,431.27 = 80,476.29 : x
  2. Step 2: Convert to fraction form
    238,251.87/357,431.27 = 80,476.29/x
  3. Step 3: Cross multiply
    238,251.87x = 357,431.27 × 80,476.29
  4. Step 4: Simplify right side
    238,251.87x = 28,764,742,137.21
  5. Step 5: Solve for x
    x = 28,764,742,137.21/238,251.87
  6. Step 6: Final answer
    x = 120,732.49

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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.