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Finding the Fourth Proportional to 276,585.55, 414,172.29 and 220,507.45

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Solution

The fourth proportional to 276,585.55, 414,172.29 and 220,507.45 is: 330,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,585.55 : 414,172.29 = 220,507.45 : x
  2. Step 2: Convert to fraction form
    276,585.55/414,172.29 = 220,507.45/x
  3. Step 3: Cross multiply
    276,585.55x = 414,172.29 × 220,507.45
  4. Step 4: Simplify right side
    276,585.55x = 91,328,074,079.68
  5. Step 5: Solve for x
    x = 91,328,074,079.68/276,585.55
  6. Step 6: Final answer
    x = 330,198.28

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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.