Home / 201,078.18-301,617-51,318.45

Finding the Fourth Proportional to 201,078.18, 301,617 and 51,318.45

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Solution

The fourth proportional to 201,078.18, 301,617 and 51,318.45 is: 76,977.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,078.18 : 301,617 = 51,318.45 : x
  2. Step 2: Convert to fraction form
    201,078.18/301,617 = 51,318.45/x
  3. Step 3: Cross multiply
    201,078.18x = 301,617 × 51,318.45
  4. Step 4: Simplify right side
    201,078.18x = 15,478,516,933.65
  5. Step 5: Solve for x
    x = 15,478,516,933.65/201,078.18
  6. Step 6: Final answer
    x = 76,977.61

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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.