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Finding the Fourth Proportional to 403,373.06, 605,063.05 and 115,183.96

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Solution

The fourth proportional to 403,373.06, 605,063.05 and 115,183.96 is: 172,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,373.06 : 605,063.05 = 115,183.96 : x
  2. Step 2: Convert to fraction form
    403,373.06/605,063.05 = 115,183.96/x
  3. Step 3: Cross multiply
    403,373.06x = 605,063.05 × 115,183.96
  4. Step 4: Simplify right side
    403,373.06x = 69,693,558,148.68
  5. Step 5: Solve for x
    x = 69,693,558,148.68/403,373.06
  6. Step 6: Final answer
    x = 172,776.93

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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.