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Finding the Fourth Proportional to 245,069.04, 338,188.86 and 137,633.88

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Solution

The fourth proportional to 245,069.04, 338,188.86 and 137,633.88 is: 189,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,069.04 : 338,188.86 = 137,633.88 : x
  2. Step 2: Convert to fraction form
    245,069.04/338,188.86 = 137,633.88/x
  3. Step 3: Cross multiply
    245,069.04x = 338,188.86 × 137,633.88
  4. Step 4: Simplify right side
    245,069.04x = 46,546,244,974.58
  5. Step 5: Solve for x
    x = 46,546,244,974.58/245,069.04
  6. Step 6: Final answer
    x = 189,931.15

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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.