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Finding the Fourth Proportional to 351,538.62, 485,131.59 and 200,649.66

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Solution

The fourth proportional to 351,538.62, 485,131.59 and 200,649.66 is: 276,901.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,538.62 : 485,131.59 = 200,649.66 : x
  2. Step 2: Convert to fraction form
    351,538.62/485,131.59 = 200,649.66/x
  3. Step 3: Cross multiply
    351,538.62x = 485,131.59 × 200,649.66
  4. Step 4: Simplify right side
    351,538.62x = 97,341,488,588.76
  5. Step 5: Solve for x
    x = 97,341,488,588.76/351,538.62
  6. Step 6: Final answer
    x = 276,901.27

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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.