Home / 290,738.27-436,276.61-122,246.39

Finding the Fourth Proportional to 290,738.27, 436,276.61 and 122,246.39

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Solution

The fourth proportional to 290,738.27, 436,276.61 and 122,246.39 is: 183,440.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,738.27 : 436,276.61 = 122,246.39 : x
  2. Step 2: Convert to fraction form
    290,738.27/436,276.61 = 122,246.39/x
  3. Step 3: Cross multiply
    290,738.27x = 436,276.61 × 122,246.39
  4. Step 4: Simplify right side
    290,738.27x = 53,333,240,613.94
  5. Step 5: Solve for x
    x = 53,333,240,613.94/290,738.27
  6. Step 6: Final answer
    x = 183,440.73

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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.