Home / 259,827.82-389,774.53-82,271.36

Finding the Fourth Proportional to 259,827.82, 389,774.53 and 82,271.36

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Solution

The fourth proportional to 259,827.82, 389,774.53 and 82,271.36 is: 123,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,827.82 : 389,774.53 = 82,271.36 : x
  2. Step 2: Convert to fraction form
    259,827.82/389,774.53 = 82,271.36/x
  3. Step 3: Cross multiply
    259,827.82x = 389,774.53 × 82,271.36
  4. Step 4: Simplify right side
    259,827.82x = 32,067,281,753.74
  5. Step 5: Solve for x
    x = 32,067,281,753.74/259,827.82
  6. Step 6: Final answer
    x = 123,417.43

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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.