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Finding the Fourth Proportional to 445,301.67, 666,375.81 and 276,901.32

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Solution

The fourth proportional to 445,301.67, 666,375.81 and 276,901.32 is: 414,371.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,301.67 : 666,375.81 = 276,901.32 : x
  2. Step 2: Convert to fraction form
    445,301.67/666,375.81 = 276,901.32/x
  3. Step 3: Cross multiply
    445,301.67x = 666,375.81 × 276,901.32
  4. Step 4: Simplify right side
    445,301.67x = 184,520,341,405.07
  5. Step 5: Solve for x
    x = 184,520,341,405.07/445,301.67
  6. Step 6: Final answer
    x = 414,371.55

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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.