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Finding the Fourth Proportional to 317,860.58, 438,523.26 and 181,821.90

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Solution

The fourth proportional to 317,860.58, 438,523.26 and 181,821.90 is: 250,843.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,860.58 : 438,523.26 = 181,821.90 : x
  2. Step 2: Convert to fraction form
    317,860.58/438,523.26 = 181,821.90/x
  3. Step 3: Cross multiply
    317,860.58x = 438,523.26 × 181,821.90
  4. Step 4: Simplify right side
    317,860.58x = 79,733,132,327.39
  5. Step 5: Solve for x
    x = 79,733,132,327.39/317,860.58
  6. Step 6: Final answer
    x = 250,843.10

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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.