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Finding the Fourth Proportional to 203,109.04, 304,736.52 and 90,779.92

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Solution

The fourth proportional to 203,109.04, 304,736.52 and 90,779.92 is: 136,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,109.04 : 304,736.52 = 90,779.92 : x
  2. Step 2: Convert to fraction form
    203,109.04/304,736.52 = 90,779.92/x
  3. Step 3: Cross multiply
    203,109.04x = 304,736.52 × 90,779.92
  4. Step 4: Simplify right side
    203,109.04x = 27,663,956,906.68
  5. Step 5: Solve for x
    x = 27,663,956,906.68/203,109.04
  6. Step 6: Final answer
    x = 136,202.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.