Home / 290,835.59-436,258.85-91,151.55

Finding the Fourth Proportional to 290,835.59, 436,258.85 and 91,151.55

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Solution

The fourth proportional to 290,835.59, 436,258.85 and 91,151.55 is: 136,729.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,835.59 : 436,258.85 = 91,151.55 : x
  2. Step 2: Convert to fraction form
    290,835.59/436,258.85 = 91,151.55/x
  3. Step 3: Cross multiply
    290,835.59x = 436,258.85 × 91,151.55
  4. Step 4: Simplify right side
    290,835.59x = 39,765,669,922.96
  5. Step 5: Solve for x
    x = 39,765,669,922.96/290,835.59
  6. Step 6: Final answer
    x = 136,729.04

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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.