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Finding the Fourth Proportional to 276,685.70, 415,028.55 and 201,452.90

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Solution

The fourth proportional to 276,685.70, 415,028.55 and 201,452.90 is: 302,179.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,685.70 : 415,028.55 = 201,452.90 : x
  2. Step 2: Convert to fraction form
    276,685.70/415,028.55 = 201,452.90/x
  3. Step 3: Cross multiply
    276,685.70x = 415,028.55 × 201,452.90
  4. Step 4: Simplify right side
    276,685.70x = 83,608,704,980.30
  5. Step 5: Solve for x
    x = 83,608,704,980.30/276,685.70
  6. Step 6: Final answer
    x = 302,179.35

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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.