Home / 255,175.62-381,827.27-212,951.45

Finding the Fourth Proportional to 255,175.62, 381,827.27 and 212,951.45

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Solution

The fourth proportional to 255,175.62, 381,827.27 and 212,951.45 is: 318,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,175.62 : 381,827.27 = 212,951.45 : x
  2. Step 2: Convert to fraction form
    255,175.62/381,827.27 = 212,951.45/x
  3. Step 3: Cross multiply
    255,175.62x = 381,827.27 × 212,951.45
  4. Step 4: Simplify right side
    255,175.62x = 81,310,667,822.15
  5. Step 5: Solve for x
    x = 81,310,667,822.15/255,175.62
  6. Step 6: Final answer
    x = 318,645.91

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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.