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Finding the Fourth Proportional to 276,214.92, 414,276.24 and 76,555.50

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Solution

The fourth proportional to 276,214.92, 414,276.24 and 76,555.50 is: 114,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,214.92 : 414,276.24 = 76,555.50 : x
  2. Step 2: Convert to fraction form
    276,214.92/414,276.24 = 76,555.50/x
  3. Step 3: Cross multiply
    276,214.92x = 414,276.24 × 76,555.50
  4. Step 4: Simplify right side
    276,214.92x = 31,715,124,691.32
  5. Step 5: Solve for x
    x = 31,715,124,691.32/276,214.92
  6. Step 6: Final answer
    x = 114,820.46

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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.