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Finding the Fourth Proportional to 248,602.47, 372,654 and 79,998.87

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Solution

The fourth proportional to 248,602.47, 372,654 and 79,998.87 is: 119,917.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,602.47 : 372,654 = 79,998.87 : x
  2. Step 2: Convert to fraction form
    248,602.47/372,654 = 79,998.87/x
  3. Step 3: Cross multiply
    248,602.47x = 372,654 × 79,998.87
  4. Step 4: Simplify right side
    248,602.47x = 29,811,898,900.98
  5. Step 5: Solve for x
    x = 29,811,898,900.98/248,602.47
  6. Step 6: Final answer
    x = 119,917.95

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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.