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Finding the Fourth Proportional to 501,379.92, 752,299.50 and 217,157.40

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Solution

The fourth proportional to 501,379.92, 752,299.50 and 217,157.40 is: 325,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,379.92 : 752,299.50 = 217,157.40 : x
  2. Step 2: Convert to fraction form
    501,379.92/752,299.50 = 217,157.40/x
  3. Step 3: Cross multiply
    501,379.92x = 752,299.50 × 217,157.40
  4. Step 4: Simplify right side
    501,379.92x = 163,367,403,441.30
  5. Step 5: Solve for x
    x = 163,367,403,441.30/501,379.92
  6. Step 6: Final answer
    x = 325,835.55

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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.