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Finding the Fourth Proportional to 317,735.67, 438,474.70 and 174,495.71

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Solution

The fourth proportional to 317,735.67, 438,474.70 and 174,495.71 is: 240,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,735.67 : 438,474.70 = 174,495.71 : x
  2. Step 2: Convert to fraction form
    317,735.67/438,474.70 = 174,495.71/x
  3. Step 3: Cross multiply
    317,735.67x = 438,474.70 × 174,495.71
  4. Step 4: Simplify right side
    317,735.67x = 76,511,953,763.56
  5. Step 5: Solve for x
    x = 76,511,953,763.56/317,735.67
  6. Step 6: Final answer
    x = 240,803.79

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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.