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Finding the Fourth Proportional to 217,379.43, 300,000.99 and 120,592.83

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Solution

The fourth proportional to 217,379.43, 300,000.99 and 120,592.83 is: 166,427.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,379.43 : 300,000.99 = 120,592.83 : x
  2. Step 2: Convert to fraction form
    217,379.43/300,000.99 = 120,592.83/x
  3. Step 3: Cross multiply
    217,379.43x = 300,000.99 × 120,592.83
  4. Step 4: Simplify right side
    217,379.43x = 36,177,968,386.90
  5. Step 5: Solve for x
    x = 36,177,968,386.90/217,379.43
  6. Step 6: Final answer
    x = 166,427.75

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1.5x scale

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.