Home / 440,112.64-660,205.68-140,635.84

Finding the Fourth Proportional to 440,112.64, 660,205.68 and 140,635.84

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Solution

The fourth proportional to 440,112.64, 660,205.68 and 140,635.84 is: 210,965.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,112.64 : 660,205.68 = 140,635.84 : x
  2. Step 2: Convert to fraction form
    440,112.64/660,205.68 = 140,635.84/x
  3. Step 3: Cross multiply
    440,112.64x = 660,205.68 × 140,635.84
  4. Step 4: Simplify right side
    440,112.64x = 92,848,580,379.57
  5. Step 5: Solve for x
    x = 92,848,580,379.57/440,112.64
  6. Step 6: Final answer
    x = 210,965.49

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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.