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Finding the Fourth Proportional to 201,280.89, 301,921.15 and 51,520.94

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Solution

The fourth proportional to 201,280.89, 301,921.15 and 51,520.94 is: 77,281.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,280.89 : 301,921.15 = 51,520.94 : x
  2. Step 2: Convert to fraction form
    201,280.89/301,921.15 = 51,520.94/x
  3. Step 3: Cross multiply
    201,280.89x = 301,921.15 × 51,520.94
  4. Step 4: Simplify right side
    201,280.89x = 15,555,262,597.68
  5. Step 5: Solve for x
    x = 15,555,262,597.68/201,280.89
  6. Step 6: Final answer
    x = 77,281.37

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1.5x scale

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.