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Finding the Fourth Proportional to 290,275.71, 435,579.39 and 112,759.62

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Solution

The fourth proportional to 290,275.71, 435,579.39 and 112,759.62 is: 169,203.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,275.71 : 435,579.39 = 112,759.62 : x
  2. Step 2: Convert to fraction form
    290,275.71/435,579.39 = 112,759.62/x
  3. Step 3: Cross multiply
    290,275.71x = 435,579.39 × 112,759.62
  4. Step 4: Simplify right side
    290,275.71x = 49,115,766,496.23
  5. Step 5: Solve for x
    x = 49,115,766,496.23/290,275.71
  6. Step 6: Final answer
    x = 169,203.85

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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.