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Finding the Fourth Proportional to 360,503, 540,715.57 and 120,589.70

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Solution

The fourth proportional to 360,503, 540,715.57 and 120,589.70 is: 180,871.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,503 : 540,715.57 = 120,589.70 : x
  2. Step 2: Convert to fraction form
    360,503/540,715.57 = 120,589.70/x
  3. Step 3: Cross multiply
    360,503x = 540,715.57 × 120,589.70
  4. Step 4: Simplify right side
    360,503x = 65,204,728,371.63
  5. Step 5: Solve for x
    x = 65,204,728,371.63/360,503
  6. Step 6: Final answer
    x = 180,871.53

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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.