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Finding the Fourth Proportional to 208,383.60, 312,114.60 and 125,439.60

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Solution

The fourth proportional to 208,383.60, 312,114.60 and 125,439.60 is: 187,882.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,383.60 : 312,114.60 = 125,439.60 : x
  2. Step 2: Convert to fraction form
    208,383.60/312,114.60 = 125,439.60/x
  3. Step 3: Cross multiply
    208,383.60x = 312,114.60 × 125,439.60
  4. Step 4: Simplify right side
    208,383.60x = 39,151,530,578.16
  5. Step 5: Solve for x
    x = 39,151,530,578.16/208,383.60
  6. Step 6: Final answer
    x = 187,882.01

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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.