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Finding the Fourth Proportional to 245,169.46, 338,315.63 and 137,757.39

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Solution

The fourth proportional to 245,169.46, 338,315.63 and 137,757.39 is: 190,094.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,169.46 : 338,315.63 = 137,757.39 : x
  2. Step 2: Convert to fraction form
    245,169.46/338,315.63 = 137,757.39/x
  3. Step 3: Cross multiply
    245,169.46x = 338,315.63 × 137,757.39
  4. Step 4: Simplify right side
    245,169.46x = 46,605,478,185.01
  5. Step 5: Solve for x
    x = 46,605,478,185.01/245,169.46
  6. Step 6: Final answer
    x = 190,094.96

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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.