Home / 208,679.46-312,319.35-171,238.02

Finding the Fourth Proportional to 208,679.46, 312,319.35 and 171,238.02

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Solution

The fourth proportional to 208,679.46, 312,319.35 and 171,238.02 is: 256,282.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,679.46 : 312,319.35 = 171,238.02 : x
  2. Step 2: Convert to fraction form
    208,679.46/312,319.35 = 171,238.02/x
  3. Step 3: Cross multiply
    208,679.46x = 312,319.35 × 171,238.02
  4. Step 4: Simplify right side
    208,679.46x = 53,480,947,101.69
  5. Step 5: Solve for x
    x = 53,480,947,101.69/208,679.46
  6. Step 6: Final answer
    x = 256,282.76

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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.