Home / 217,584.48-300,189.60-142,176.72

Finding the Fourth Proportional to 217,584.48, 300,189.60 and 142,176.72

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Solution

The fourth proportional to 217,584.48, 300,189.60 and 142,176.72 is: 196,153.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,584.48 : 300,189.60 = 142,176.72 : x
  2. Step 2: Convert to fraction form
    217,584.48/300,189.60 = 142,176.72/x
  3. Step 3: Cross multiply
    217,584.48x = 300,189.60 × 142,176.72
  4. Step 4: Simplify right side
    217,584.48x = 42,679,972,706.11
  5. Step 5: Solve for x
    x = 42,679,972,706.11/217,584.48
  6. Step 6: Final answer
    x = 196,153.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.