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Finding the Fourth Proportional to 248,336.65, 372,560.51 and 90,565.11

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Solution

The fourth proportional to 248,336.65, 372,560.51 and 90,565.11 is: 135,867.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,336.65 : 372,560.51 = 90,565.11 : x
  2. Step 2: Convert to fraction form
    248,336.65/372,560.51 = 90,565.11/x
  3. Step 3: Cross multiply
    248,336.65x = 372,560.51 × 90,565.11
  4. Step 4: Simplify right side
    248,336.65x = 33,740,981,480.59
  5. Step 5: Solve for x
    x = 33,740,981,480.59/248,336.65
  6. Step 6: Final answer
    x = 135,867.91

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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.