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Finding the Fourth Proportional to 276,063.60, 414,338.40 and 163,603.20

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Solution

The fourth proportional to 276,063.60, 414,338.40 and 163,603.20 is: 245,548.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,063.60 : 414,338.40 = 163,603.20 : x
  2. Step 2: Convert to fraction form
    276,063.60/414,338.40 = 163,603.20/x
  3. Step 3: Cross multiply
    276,063.60x = 414,338.40 × 163,603.20
  4. Step 4: Simplify right side
    276,063.60x = 67,787,088,122.88
  5. Step 5: Solve for x
    x = 67,787,088,122.88/276,063.60
  6. Step 6: Final answer
    x = 245,548.81

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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.