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Finding the Fourth Proportional to 208,682.88, 312,987.96 and 96,353.52

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Solution

The fourth proportional to 208,682.88, 312,987.96 and 96,353.52 is: 144,513.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,682.88 : 312,987.96 = 96,353.52 : x
  2. Step 2: Convert to fraction form
    208,682.88/312,987.96 = 96,353.52/x
  3. Step 3: Cross multiply
    208,682.88x = 312,987.96 × 96,353.52
  4. Step 4: Simplify right side
    208,682.88x = 30,157,491,663.62
  5. Step 5: Solve for x
    x = 30,157,491,663.62/208,682.88
  6. Step 6: Final answer
    x = 144,513.49

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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.