Home / 209,581.29-314,275.43-67,400.28

Finding the Fourth Proportional to 209,581.29, 314,275.43 and 67,400.28

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Solution

The fourth proportional to 209,581.29, 314,275.43 and 67,400.28 is: 101,069.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,581.29 : 314,275.43 = 67,400.28 : x
  2. Step 2: Convert to fraction form
    209,581.29/314,275.43 = 67,400.28/x
  3. Step 3: Cross multiply
    209,581.29x = 314,275.43 × 67,400.28
  4. Step 4: Simplify right side
    209,581.29x = 21,182,252,147.62
  5. Step 5: Solve for x
    x = 21,182,252,147.62/209,581.29
  6. Step 6: Final answer
    x = 101,069.39

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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.