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Finding the Fourth Proportional to 248,097.88, 371,978.40 and 126,218.87

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Solution

The fourth proportional to 248,097.88, 371,978.40 and 126,218.87 is: 189,242.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,097.88 : 371,978.40 = 126,218.87 : x
  2. Step 2: Convert to fraction form
    248,097.88/371,978.40 = 126,218.87/x
  3. Step 3: Cross multiply
    248,097.88x = 371,978.40 × 126,218.87
  4. Step 4: Simplify right side
    248,097.88x = 46,950,693,312.41
  5. Step 5: Solve for x
    x = 46,950,693,312.41/248,097.88
  6. Step 6: Final answer
    x = 189,242.62

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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.