Home / 290,618.13-401,217.45-188,734.71

Finding the Fourth Proportional to 290,618.13, 401,217.45 and 188,734.71

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Solution

The fourth proportional to 290,618.13, 401,217.45 and 188,734.71 is: 260,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,618.13 : 401,217.45 = 188,734.71 : x
  2. Step 2: Convert to fraction form
    290,618.13/401,217.45 = 188,734.71/x
  3. Step 3: Cross multiply
    290,618.13x = 401,217.45 × 188,734.71
  4. Step 4: Simplify right side
    290,618.13x = 75,723,656,122.93
  5. Step 5: Solve for x
    x = 75,723,656,122.93/290,618.13
  6. Step 6: Final answer
    x = 260,560.68

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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.