Home / 384,716.45-530,936.19-212,630.71

Finding the Fourth Proportional to 384,716.45, 530,936.19 and 212,630.71

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Solution

The fourth proportional to 384,716.45, 530,936.19 and 212,630.71 is: 293,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,716.45 : 530,936.19 = 212,630.71 : x
  2. Step 2: Convert to fraction form
    384,716.45/530,936.19 = 212,630.71/x
  3. Step 3: Cross multiply
    384,716.45x = 530,936.19 × 212,630.71
  4. Step 4: Simplify right side
    384,716.45x = 112,893,339,044.40
  5. Step 5: Solve for x
    x = 112,893,339,044.40/384,716.45
  6. Step 6: Final answer
    x = 293,445.57

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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.