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Finding the Fourth Proportional to 248,345.28, 372,487.14 and 70,867.80

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Solution

The fourth proportional to 248,345.28, 372,487.14 and 70,867.80 is: 106,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,345.28 : 372,487.14 = 70,867.80 : x
  2. Step 2: Convert to fraction form
    248,345.28/372,487.14 = 70,867.80/x
  3. Step 3: Cross multiply
    248,345.28x = 372,487.14 × 70,867.80
  4. Step 4: Simplify right side
    248,345.28x = 26,397,344,140.09
  5. Step 5: Solve for x
    x = 26,397,344,140.09/248,345.28
  6. Step 6: Final answer
    x = 106,292.92

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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.