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Finding the Fourth Proportional to 317,738.56, 438,486.48 and 174,508

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Solution

The fourth proportional to 317,738.56, 438,486.48 and 174,508 is: 240,825.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,738.56 : 438,486.48 = 174,508 : x
  2. Step 2: Convert to fraction form
    317,738.56/438,486.48 = 174,508/x
  3. Step 3: Cross multiply
    317,738.56x = 438,486.48 × 174,508
  4. Step 4: Simplify right side
    317,738.56x = 76,519,398,651.84
  5. Step 5: Solve for x
    x = 76,519,398,651.84/317,738.56
  6. Step 6: Final answer
    x = 240,825.03

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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.