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Finding the Fourth Proportional to 276,444.35, 414,666.69 and 76,764.76

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Solution

The fourth proportional to 276,444.35, 414,666.69 and 76,764.76 is: 115,147.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,444.35 : 414,666.69 = 76,764.76 : x
  2. Step 2: Convert to fraction form
    276,444.35/414,666.69 = 76,764.76/x
  3. Step 3: Cross multiply
    276,444.35x = 414,666.69 × 76,764.76
  4. Step 4: Simplify right side
    276,444.35x = 31,831,787,901.18
  5. Step 5: Solve for x
    x = 31,831,787,901.18/276,444.35
  6. Step 6: Final answer
    x = 115,147.18

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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.