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Finding the Fourth Proportional to 318,059.44, 439,024.31 and 203,646.26

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Solution

The fourth proportional to 318,059.44, 439,024.31 and 203,646.26 is: 281,097.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,059.44 : 439,024.31 = 203,646.26 : x
  2. Step 2: Convert to fraction form
    318,059.44/439,024.31 = 203,646.26/x
  3. Step 3: Cross multiply
    318,059.44x = 439,024.31 × 203,646.26
  4. Step 4: Simplify right side
    318,059.44x = 89,405,658,780.58
  5. Step 5: Solve for x
    x = 89,405,658,780.58/318,059.44
  6. Step 6: Final answer
    x = 281,097.33

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1.5x scale

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.