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Finding the Fourth Proportional to 276,609.60, 414,914.40 and 239,211.90

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Solution

The fourth proportional to 276,609.60, 414,914.40 and 239,211.90 is: 358,817.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,609.60 : 414,914.40 = 239,211.90 : x
  2. Step 2: Convert to fraction form
    276,609.60/414,914.40 = 239,211.90/x
  3. Step 3: Cross multiply
    276,609.60x = 414,914.40 × 239,211.90
  4. Step 4: Simplify right side
    276,609.60x = 99,252,461,961.36
  5. Step 5: Solve for x
    x = 99,252,461,961.36/276,609.60
  6. Step 6: Final answer
    x = 358,817.85

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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.