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Finding the Fourth Proportional to 245,309.44, 338,539.12 and 149,800.72

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Solution

The fourth proportional to 245,309.44, 338,539.12 and 149,800.72 is: 206,732.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,309.44 : 338,539.12 = 149,800.72 : x
  2. Step 2: Convert to fraction form
    245,309.44/338,539.12 = 149,800.72/x
  3. Step 3: Cross multiply
    245,309.44x = 338,539.12 × 149,800.72
  4. Step 4: Simplify right side
    245,309.44x = 50,713,403,924.17
  5. Step 5: Solve for x
    x = 50,713,403,924.17/245,309.44
  6. Step 6: Final answer
    x = 206,732.38

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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.