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Finding the Fourth Proportional to 209,666.88, 314,453.88 and 67,474.08

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Solution

The fourth proportional to 209,666.88, 314,453.88 and 67,474.08 is: 101,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,666.88 : 314,453.88 = 67,474.08 : x
  2. Step 2: Convert to fraction form
    209,666.88/314,453.88 = 67,474.08/x
  3. Step 3: Cross multiply
    209,666.88x = 314,453.88 × 67,474.08
  4. Step 4: Simplify right side
    209,666.88x = 21,217,486,255.43
  5. Step 5: Solve for x
    x = 21,217,486,255.43/209,666.88
  6. Step 6: Final answer
    x = 101,196.17

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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.