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Finding the Fourth Proportional to 445,540.08, 668,448.68 and 146,023.28

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Solution

The fourth proportional to 445,540.08, 668,448.68 and 146,023.28 is: 219,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,540.08 : 668,448.68 = 146,023.28 : x
  2. Step 2: Convert to fraction form
    445,540.08/668,448.68 = 146,023.28/x
  3. Step 3: Cross multiply
    445,540.08x = 668,448.68 × 146,023.28
  4. Step 4: Simplify right side
    445,540.08x = 97,609,068,765.27
  5. Step 5: Solve for x
    x = 97,609,068,765.27/445,540.08
  6. Step 6: Final answer
    x = 219,080.33

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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.