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Finding the Fourth Proportional to 254,233, 349,597.38 and 220,640.68

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Solution

The fourth proportional to 254,233, 349,597.38 and 220,640.68 is: 303,404.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,233 : 349,597.38 = 220,640.68 : x
  2. Step 2: Convert to fraction form
    254,233/349,597.38 = 220,640.68/x
  3. Step 3: Cross multiply
    254,233x = 349,597.38 × 220,640.68
  4. Step 4: Simplify right side
    254,233x = 77,135,403,649.42
  5. Step 5: Solve for x
    x = 77,135,403,649.42/254,233
  6. Step 6: Final answer
    x = 303,404.37

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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.