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Finding the Fourth Proportional to 245,380.06, 338,625.01 and 137,950.98

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Solution

The fourth proportional to 245,380.06, 338,625.01 and 137,950.98 is: 190,372.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,380.06 : 338,625.01 = 137,950.98 : x
  2. Step 2: Convert to fraction form
    245,380.06/338,625.01 = 137,950.98/x
  3. Step 3: Cross multiply
    245,380.06x = 338,625.01 × 137,950.98
  4. Step 4: Simplify right side
    245,380.06x = 46,713,650,884.60
  5. Step 5: Solve for x
    x = 46,713,650,884.60/245,380.06
  6. Step 6: Final answer
    x = 190,372.64

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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.