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Finding the Fourth Proportional to 317,731.34, 438,476.88 and 174,494.47

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Solution

The fourth proportional to 317,731.34, 438,476.88 and 174,494.47 is: 240,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,731.34 : 438,476.88 = 174,494.47 : x
  2. Step 2: Convert to fraction form
    317,731.34/438,476.88 = 174,494.47/x
  3. Step 3: Cross multiply
    317,731.34x = 438,476.88 × 174,494.47
  4. Step 4: Simplify right side
    317,731.34x = 76,511,790,782.85
  5. Step 5: Solve for x
    x = 76,511,790,782.85/317,731.34
  6. Step 6: Final answer
    x = 240,806.56

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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.