Home / 279,212.57-385,313.05-151,887.86

Finding the Fourth Proportional to 279,212.57, 385,313.05 and 151,887.86

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Solution

The fourth proportional to 279,212.57, 385,313.05 and 151,887.86 is: 209,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,212.57 : 385,313.05 = 151,887.86 : x
  2. Step 2: Convert to fraction form
    279,212.57/385,313.05 = 151,887.86/x
  3. Step 3: Cross multiply
    279,212.57x = 385,313.05 × 151,887.86
  4. Step 4: Simplify right side
    279,212.57x = 58,524,374,594.57
  5. Step 5: Solve for x
    x = 58,524,374,594.57/279,212.57
  6. Step 6: Final answer
    x = 209,605.09

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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.