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Finding the Fourth Proportional to 250,448.72, 345,417.90 and 220,169.84

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Solution

The fourth proportional to 250,448.72, 345,417.90 and 220,169.84 is: 303,657.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,448.72 : 345,417.90 = 220,169.84 : x
  2. Step 2: Convert to fraction form
    250,448.72/345,417.90 = 220,169.84/x
  3. Step 3: Cross multiply
    250,448.72x = 345,417.90 × 220,169.84
  4. Step 4: Simplify right side
    250,448.72x = 76,050,603,776.14
  5. Step 5: Solve for x
    x = 76,050,603,776.14/250,448.72
  6. Step 6: Final answer
    x = 303,657.39

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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.