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Finding the Fourth Proportional to 245,291.30, 338,474.89 and 147,169.33

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Solution

The fourth proportional to 245,291.30, 338,474.89 and 147,169.33 is: 203,077.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,291.30 : 338,474.89 = 147,169.33 : x
  2. Step 2: Convert to fraction form
    245,291.30/338,474.89 = 147,169.33/x
  3. Step 3: Cross multiply
    245,291.30x = 338,474.89 × 147,169.33
  4. Step 4: Simplify right side
    245,291.30x = 49,813,122,783.12
  5. Step 5: Solve for x
    x = 49,813,122,783.12/245,291.30
  6. Step 6: Final answer
    x = 203,077.41

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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.