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Finding the Fourth Proportional to 209,633.20, 314,468.03 and 67,492.78

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Solution

The fourth proportional to 209,633.20, 314,468.03 and 67,492.78 is: 101,245.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,633.20 : 314,468.03 = 67,492.78 : x
  2. Step 2: Convert to fraction form
    209,633.20/314,468.03 = 67,492.78/x
  3. Step 3: Cross multiply
    209,633.20x = 314,468.03 × 67,492.78
  4. Step 4: Simplify right side
    209,633.20x = 21,224,321,565.82
  5. Step 5: Solve for x
    x = 21,224,321,565.82/209,633.20
  6. Step 6: Final answer
    x = 101,245.04

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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.