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Finding the Fourth Proportional to 245,169.69, 338,342.87 and 137,737.56

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Solution

The fourth proportional to 245,169.69, 338,342.87 and 137,737.56 is: 190,082.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,169.69 : 338,342.87 = 137,737.56 : x
  2. Step 2: Convert to fraction form
    245,169.69/338,342.87 = 137,737.56/x
  3. Step 3: Cross multiply
    245,169.69x = 338,342.87 × 137,737.56
  4. Step 4: Simplify right side
    245,169.69x = 46,602,522,970.33
  5. Step 5: Solve for x
    x = 46,602,522,970.33/245,169.69
  6. Step 6: Final answer
    x = 190,082.73

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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.