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Finding the Fourth Proportional to 317,605.22, 438,295.95 and 174,374.48

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Solution

The fourth proportional to 317,605.22, 438,295.95 and 174,374.48 is: 240,637.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,605.22 : 438,295.95 = 174,374.48 : x
  2. Step 2: Convert to fraction form
    317,605.22/438,295.95 = 174,374.48/x
  3. Step 3: Cross multiply
    317,605.22x = 438,295.95 × 174,374.48
  4. Step 4: Simplify right side
    317,605.22x = 76,427,628,367.36
  5. Step 5: Solve for x
    x = 76,427,628,367.36/317,605.22
  6. Step 6: Final answer
    x = 240,637.19

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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.