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Finding the Fourth Proportional to 440,530.83, 660,878.94 and 140,930.96

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Solution

The fourth proportional to 440,530.83, 660,878.94 and 140,930.96 is: 211,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,530.83 : 660,878.94 = 140,930.96 : x
  2. Step 2: Convert to fraction form
    440,530.83/660,878.94 = 140,930.96/x
  3. Step 3: Cross multiply
    440,530.83x = 660,878.94 × 140,930.96
  4. Step 4: Simplify right side
    440,530.83x = 93,138,305,267.32
  5. Step 5: Solve for x
    x = 93,138,305,267.32/440,530.83
  6. Step 6: Final answer
    x = 211,422.90

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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.