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Finding the Fourth Proportional to 301,158.30, 451,804.23 and 90,781.05

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Solution

The fourth proportional to 301,158.30, 451,804.23 and 90,781.05 is: 136,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,158.30 : 451,804.23 = 90,781.05 : x
  2. Step 2: Convert to fraction form
    301,158.30/451,804.23 = 90,781.05/x
  3. Step 3: Cross multiply
    301,158.30x = 451,804.23 × 90,781.05
  4. Step 4: Simplify right side
    301,158.30x = 41,015,262,393.84
  5. Step 5: Solve for x
    x = 41,015,262,393.84/301,158.30
  6. Step 6: Final answer
    x = 136,191.71

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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.