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Finding the Fourth Proportional to 386,625.24, 579,699.64 and 133,846.92

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Solution

The fourth proportional to 386,625.24, 579,699.64 and 133,846.92 is: 200,687.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,625.24 : 579,699.64 = 133,846.92 : x
  2. Step 2: Convert to fraction form
    386,625.24/579,699.64 = 133,846.92/x
  3. Step 3: Cross multiply
    386,625.24x = 579,699.64 × 133,846.92
  4. Step 4: Simplify right side
    386,625.24x = 77,591,011,339.11
  5. Step 5: Solve for x
    x = 77,591,011,339.11/386,625.24
  6. Step 6: Final answer
    x = 200,687.91

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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.