Home / 290,788.28-401,282.60-177,611.04

Finding the Fourth Proportional to 290,788.28, 401,282.60 and 177,611.04

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Solution

The fourth proportional to 290,788.28, 401,282.60 and 177,611.04 is: 245,100.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,788.28 : 401,282.60 = 177,611.04 : x
  2. Step 2: Convert to fraction form
    290,788.28/401,282.60 = 177,611.04/x
  3. Step 3: Cross multiply
    290,788.28x = 401,282.60 × 177,611.04
  4. Step 4: Simplify right side
    290,788.28x = 71,272,219,919.90
  5. Step 5: Solve for x
    x = 71,272,219,919.90/290,788.28
  6. Step 6: Final answer
    x = 245,100.04

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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.