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Finding the Fourth Proportional to 317,888.50, 438,691 and 174,651.34

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Solution

The fourth proportional to 317,888.50, 438,691 and 174,651.34 is: 241,021.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,888.50 : 438,691 = 174,651.34 : x
  2. Step 2: Convert to fraction form
    317,888.50/438,691 = 174,651.34/x
  3. Step 3: Cross multiply
    317,888.50x = 438,691 × 174,651.34
  4. Step 4: Simplify right side
    317,888.50x = 76,617,970,995.94
  5. Step 5: Solve for x
    x = 76,617,970,995.94/317,888.50
  6. Step 6: Final answer
    x = 241,021.52

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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.