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Finding the Fourth Proportional to 352,412.85, 486,211.37 and 225,162.93

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Solution

The fourth proportional to 352,412.85, 486,211.37 and 225,162.93 is: 310,649.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,412.85 : 486,211.37 = 225,162.93 : x
  2. Step 2: Convert to fraction form
    352,412.85/486,211.37 = 225,162.93/x
  3. Step 3: Cross multiply
    352,412.85x = 486,211.37 × 225,162.93
  4. Step 4: Simplify right side
    352,412.85x = 109,476,775,542.70
  5. Step 5: Solve for x
    x = 109,476,775,542.70/352,412.85
  6. Step 6: Final answer
    x = 310,649.22

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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.