Home / 278,408.27-384,203.66-151,083.86

Finding the Fourth Proportional to 278,408.27, 384,203.66 and 151,083.86

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Solution

The fourth proportional to 278,408.27, 384,203.66 and 151,083.86 is: 208,495.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,408.27 : 384,203.66 = 151,083.86 : x
  2. Step 2: Convert to fraction form
    278,408.27/384,203.66 = 151,083.86/x
  3. Step 3: Cross multiply
    278,408.27x = 384,203.66 × 151,083.86
  4. Step 4: Simplify right side
    278,408.27x = 58,046,969,302.49
  5. Step 5: Solve for x
    x = 58,046,969,302.49/278,408.27
  6. Step 6: Final answer
    x = 208,495.85

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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.