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Finding the Fourth Proportional to 201,248.85, 301,870.20 and 51,487.89

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Solution

The fourth proportional to 201,248.85, 301,870.20 and 51,487.89 is: 77,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,248.85 : 301,870.20 = 51,487.89 : x
  2. Step 2: Convert to fraction form
    201,248.85/301,870.20 = 51,487.89/x
  3. Step 3: Cross multiply
    201,248.85x = 301,870.20 × 51,487.89
  4. Step 4: Simplify right side
    201,248.85x = 15,542,659,651.88
  5. Step 5: Solve for x
    x = 15,542,659,651.88/201,248.85
  6. Step 6: Final answer
    x = 77,231.05

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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.