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Finding the Fourth Proportional to 248,180.68, 372,129.78 and 169,390.36

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Solution

The fourth proportional to 248,180.68, 372,129.78 and 169,390.36 is: 253,989.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,180.68 : 372,129.78 = 169,390.36 : x
  2. Step 2: Convert to fraction form
    248,180.68/372,129.78 = 169,390.36/x
  3. Step 3: Cross multiply
    248,180.68x = 372,129.78 × 169,390.36
  4. Step 4: Simplify right side
    248,180.68x = 63,035,197,400.92
  5. Step 5: Solve for x
    x = 63,035,197,400.92/248,180.68
  6. Step 6: Final answer
    x = 253,989.14

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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.