Home / 290,519.08-435,766.74-80,151.64

Finding the Fourth Proportional to 290,519.08, 435,766.74 and 80,151.64

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Solution

The fourth proportional to 290,519.08, 435,766.74 and 80,151.64 is: 120,224.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,519.08 : 435,766.74 = 80,151.64 : x
  2. Step 2: Convert to fraction form
    290,519.08/435,766.74 = 80,151.64/x
  3. Step 3: Cross multiply
    290,519.08x = 435,766.74 × 80,151.64
  4. Step 4: Simplify right side
    290,519.08x = 34,927,418,868.45
  5. Step 5: Solve for x
    x = 34,927,418,868.45/290,519.08
  6. Step 6: Final answer
    x = 120,224.18

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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.