Home / 352,482.13-486,433.56-209,242.72

Finding the Fourth Proportional to 352,482.13, 486,433.56 and 209,242.72

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Solution

The fourth proportional to 352,482.13, 486,433.56 and 209,242.72 is: 288,759.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,482.13 : 486,433.56 = 209,242.72 : x
  2. Step 2: Convert to fraction form
    352,482.13/486,433.56 = 209,242.72/x
  3. Step 3: Cross multiply
    352,482.13x = 486,433.56 × 209,242.72
  4. Step 4: Simplify right side
    352,482.13x = 101,782,681,193.68
  5. Step 5: Solve for x
    x = 101,782,681,193.68/352,482.13
  6. Step 6: Final answer
    x = 288,759.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.