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Finding the Fourth Proportional to 251,406.68, 377,165.66 and 82,979.08

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Solution

The fourth proportional to 251,406.68, 377,165.66 and 82,979.08 is: 124,486.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,406.68 : 377,165.66 = 82,979.08 : x
  2. Step 2: Convert to fraction form
    251,406.68/377,165.66 = 82,979.08/x
  3. Step 3: Cross multiply
    251,406.68x = 377,165.66 × 82,979.08
  4. Step 4: Simplify right side
    251,406.68x = 31,296,859,474.39
  5. Step 5: Solve for x
    x = 31,296,859,474.39/251,406.68
  6. Step 6: Final answer
    x = 124,486.98

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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.