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Finding the Fourth Proportional to 140,774.40, 211,163.84 and 47,280.96

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Solution

The fourth proportional to 140,774.40, 211,163.84 and 47,280.96 is: 70,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,774.40 : 211,163.84 = 47,280.96 : x
  2. Step 2: Convert to fraction form
    140,774.40/211,163.84 = 47,280.96/x
  3. Step 3: Cross multiply
    140,774.40x = 211,163.84 × 47,280.96
  4. Step 4: Simplify right side
    140,774.40x = 9,984,029,072.49
  5. Step 5: Solve for x
    x = 9,984,029,072.49/140,774.40
  6. Step 6: Final answer
    x = 70,922.19

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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.