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Finding the Fourth Proportional to 317,454.82, 438,058.71 and 188,371.04

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Solution

The fourth proportional to 317,454.82, 438,058.71 and 188,371.04 is: 259,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,454.82 : 438,058.71 = 188,371.04 : x
  2. Step 2: Convert to fraction form
    317,454.82/438,058.71 = 188,371.04/x
  3. Step 3: Cross multiply
    317,454.82x = 438,058.71 × 188,371.04
  4. Step 4: Simplify right side
    317,454.82x = 82,517,575,759.79
  5. Step 5: Solve for x
    x = 82,517,575,759.79/317,454.82
  6. Step 6: Final answer
    x = 259,934.86

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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.