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Finding the Fourth Proportional to 318,036.30, 438,891.04 and 174,811.02

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Solution

The fourth proportional to 318,036.30, 438,891.04 and 174,811.02 is: 241,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,036.30 : 438,891.04 = 174,811.02 : x
  2. Step 2: Convert to fraction form
    318,036.30/438,891.04 = 174,811.02/x
  3. Step 3: Cross multiply
    318,036.30x = 438,891.04 × 174,811.02
  4. Step 4: Simplify right side
    318,036.30x = 76,722,990,371.26
  5. Step 5: Solve for x
    x = 76,722,990,371.26/318,036.30
  6. Step 6: Final answer
    x = 241,239.73

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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.