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Finding the Fourth Proportional to 273,376.40, 410,129.40 and 140,277.20

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Solution

The fourth proportional to 273,376.40, 410,129.40 and 140,277.20 is: 210,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,376.40 : 410,129.40 = 140,277.20 : x
  2. Step 2: Convert to fraction form
    273,376.40/410,129.40 = 140,277.20/x
  3. Step 3: Cross multiply
    273,376.40x = 410,129.40 × 140,277.20
  4. Step 4: Simplify right side
    273,376.40x = 57,531,803,869.68
  5. Step 5: Solve for x
    x = 57,531,803,869.68/273,376.40
  6. Step 6: Final answer
    x = 210,449.05

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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.