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Finding the Fourth Proportional to 276,255.80, 414,342.69 and 76,555.36

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Solution

The fourth proportional to 276,255.80, 414,342.69 and 76,555.36 is: 114,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,255.80 : 414,342.69 = 76,555.36 : x
  2. Step 2: Convert to fraction form
    276,255.80/414,342.69 = 76,555.36/x
  3. Step 3: Cross multiply
    276,255.80x = 414,342.69 × 76,555.36
  4. Step 4: Simplify right side
    276,255.80x = 31,720,153,796.32
  5. Step 5: Solve for x
    x = 31,720,153,796.32/276,255.80
  6. Step 6: Final answer
    x = 114,821.68

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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.