Home / 278,125.48-417,204.83-78,462.91

Finding the Fourth Proportional to 278,125.48, 417,204.83 and 78,462.91

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Solution

The fourth proportional to 278,125.48, 417,204.83 and 78,462.91 is: 117,699.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,125.48 : 417,204.83 = 78,462.91 : x
  2. Step 2: Convert to fraction form
    278,125.48/417,204.83 = 78,462.91/x
  3. Step 3: Cross multiply
    278,125.48x = 417,204.83 × 78,462.91
  4. Step 4: Simplify right side
    278,125.48x = 32,735,105,027.86
  5. Step 5: Solve for x
    x = 32,735,105,027.86/278,125.48
  6. Step 6: Final answer
    x = 117,699.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.