Home / 280,835.92-421,371.08-123,177.52

Finding the Fourth Proportional to 280,835.92, 421,371.08 and 123,177.52

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Solution

The fourth proportional to 280,835.92, 421,371.08 and 123,177.52 is: 184,817.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,835.92 : 421,371.08 = 123,177.52 : x
  2. Step 2: Convert to fraction form
    280,835.92/421,371.08 = 123,177.52/x
  3. Step 3: Cross multiply
    280,835.92x = 421,371.08 × 123,177.52
  4. Step 4: Simplify right side
    280,835.92x = 51,903,444,634.12
  5. Step 5: Solve for x
    x = 51,903,444,634.12/280,835.92
  6. Step 6: Final answer
    x = 184,817.69

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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.