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Finding the Fourth Proportional to 290,458.03, 435,315.92 and 234,324.61

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Solution

The fourth proportional to 290,458.03, 435,315.92 and 234,324.61 is: 351,187.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,458.03 : 435,315.92 = 234,324.61 : x
  2. Step 2: Convert to fraction form
    290,458.03/435,315.92 = 234,324.61/x
  3. Step 3: Cross multiply
    290,458.03x = 435,315.92 × 234,324.61
  4. Step 4: Simplify right side
    290,458.03x = 102,005,229,832.59
  5. Step 5: Solve for x
    x = 102,005,229,832.59/290,458.03
  6. Step 6: Final answer
    x = 351,187.51

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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.