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Finding the Fourth Proportional to 245,023.53, 338,131.17 and 137,602.95

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Solution

The fourth proportional to 245,023.53, 338,131.17 and 137,602.95 is: 189,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,023.53 : 338,131.17 = 137,602.95 : x
  2. Step 2: Convert to fraction form
    245,023.53/338,131.17 = 137,602.95/x
  3. Step 3: Cross multiply
    245,023.53x = 338,131.17 × 137,602.95
  4. Step 4: Simplify right side
    245,023.53x = 46,527,846,478.95
  5. Step 5: Solve for x
    x = 46,527,846,478.95/245,023.53
  6. Step 6: Final answer
    x = 189,891.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.