Home / 331,085.57-456,758.73-208,360.55

Finding the Fourth Proportional to 331,085.57, 456,758.73 and 208,360.55

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Solution

The fourth proportional to 331,085.57, 456,758.73 and 208,360.55 is: 287,449.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,085.57 : 456,758.73 = 208,360.55 : x
  2. Step 2: Convert to fraction form
    331,085.57/456,758.73 = 208,360.55/x
  3. Step 3: Cross multiply
    331,085.57x = 456,758.73 × 208,360.55
  4. Step 4: Simplify right side
    331,085.57x = 95,170,501,342.00
  5. Step 5: Solve for x
    x = 95,170,501,342.00/331,085.57
  6. Step 6: Final answer
    x = 287,449.87

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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.