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Finding the Fourth Proportional to 318,600, 439,668 and 184,464

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Solution

The fourth proportional to 318,600, 439,668 and 184,464 is: 254,560.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,600 : 439,668 = 184,464 : x
  2. Step 2: Convert to fraction form
    318,600/439,668 = 184,464/x
  3. Step 3: Cross multiply
    318,600x = 439,668 × 184,464
  4. Step 4: Simplify right side
    318,600x = 81,102,917,952
  5. Step 5: Solve for x
    x = 81,102,917,952/318,600
  6. Step 6: Final answer
    x = 254,560.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.