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Finding the Fourth Proportional to 208,165.28, 312,248.72 and 50,393.48

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Solution

The fourth proportional to 208,165.28, 312,248.72 and 50,393.48 is: 75,590.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,165.28 : 312,248.72 = 50,393.48 : x
  2. Step 2: Convert to fraction form
    208,165.28/312,248.72 = 50,393.48/x
  3. Step 3: Cross multiply
    208,165.28x = 312,248.72 × 50,393.48
  4. Step 4: Simplify right side
    208,165.28x = 15,735,299,626.35
  5. Step 5: Solve for x
    x = 15,735,299,626.35/208,165.28
  6. Step 6: Final answer
    x = 75,590.41

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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.