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Finding the Fourth Proportional to 276,388.08, 414,659.88 and 98,920.32

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Solution

The fourth proportional to 276,388.08, 414,659.88 and 98,920.32 is: 148,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,388.08 : 414,659.88 = 98,920.32 : x
  2. Step 2: Convert to fraction form
    276,388.08/414,659.88 = 98,920.32/x
  3. Step 3: Cross multiply
    276,388.08x = 414,659.88 × 98,920.32
  4. Step 4: Simplify right side
    276,388.08x = 41,018,288,020.76
  5. Step 5: Solve for x
    x = 41,018,288,020.76/276,388.08
  6. Step 6: Final answer
    x = 148,408.31

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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.