Home / 438,782.42-658,198.25-123,214.72

Finding the Fourth Proportional to 438,782.42, 658,198.25 and 123,214.72

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Solution

The fourth proportional to 438,782.42, 658,198.25 and 123,214.72 is: 184,828.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,782.42 : 658,198.25 = 123,214.72 : x
  2. Step 2: Convert to fraction form
    438,782.42/658,198.25 = 123,214.72/x
  3. Step 3: Cross multiply
    438,782.42x = 658,198.25 × 123,214.72
  4. Step 4: Simplify right side
    438,782.42x = 81,099,713,078.24
  5. Step 5: Solve for x
    x = 81,099,713,078.24/438,782.42
  6. Step 6: Final answer
    x = 184,828.99

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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.