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Finding the Fourth Proportional to 445,016.32, 666,357.96 and 305,048.32

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Solution

The fourth proportional to 445,016.32, 666,357.96 and 305,048.32 is: 456,772.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,016.32 : 666,357.96 = 305,048.32 : x
  2. Step 2: Convert to fraction form
    445,016.32/666,357.96 = 305,048.32/x
  3. Step 3: Cross multiply
    445,016.32x = 666,357.96 × 305,048.32
  4. Step 4: Simplify right side
    445,016.32x = 203,271,376,216.63
  5. Step 5: Solve for x
    x = 203,271,376,216.63/445,016.32
  6. Step 6: Final answer
    x = 456,772.86

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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.