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Finding the Fourth Proportional to 317,738, 438,481.46 and 174,501

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Solution

The fourth proportional to 317,738, 438,481.46 and 174,501 is: 240,813.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,738 : 438,481.46 = 174,501 : x
  2. Step 2: Convert to fraction form
    317,738/438,481.46 = 174,501/x
  3. Step 3: Cross multiply
    317,738x = 438,481.46 × 174,501
  4. Step 4: Simplify right side
    317,738x = 76,515,453,251.46
  5. Step 5: Solve for x
    x = 76,515,453,251.46/317,738
  6. Step 6: Final answer
    x = 240,813.04

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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.