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Finding the Fourth Proportional to 351,967.58, 485,712.33 and 199,035.80

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Solution

The fourth proportional to 351,967.58, 485,712.33 and 199,035.80 is: 274,667.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,967.58 : 485,712.33 = 199,035.80 : x
  2. Step 2: Convert to fraction form
    351,967.58/485,712.33 = 199,035.80/x
  3. Step 3: Cross multiply
    351,967.58x = 485,712.33 × 199,035.80
  4. Step 4: Simplify right side
    351,967.58x = 96,674,144,132.08
  5. Step 5: Solve for x
    x = 96,674,144,132.08/351,967.58
  6. Step 6: Final answer
    x = 274,667.75

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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.