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Finding the Fourth Proportional to 208,250.40, 312,372.82 and 50,480.20

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Solution

The fourth proportional to 208,250.40, 312,372.82 and 50,480.20 is: 75,719.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,250.40 : 312,372.82 = 50,480.20 : x
  2. Step 2: Convert to fraction form
    208,250.40/312,372.82 = 50,480.20/x
  3. Step 3: Cross multiply
    208,250.40x = 312,372.82 × 50,480.20
  4. Step 4: Simplify right side
    208,250.40x = 15,768,642,428.16
  5. Step 5: Solve for x
    x = 15,768,642,428.16/208,250.40
  6. Step 6: Final answer
    x = 75,719.63

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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.