Home / 287,634.94-396,936.59-172,914.84

Finding the Fourth Proportional to 287,634.94, 396,936.59 and 172,914.84

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Solution

The fourth proportional to 287,634.94, 396,936.59 and 172,914.84 is: 238,622.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,634.94 : 396,936.59 = 172,914.84 : x
  2. Step 2: Convert to fraction form
    287,634.94/396,936.59 = 172,914.84/x
  3. Step 3: Cross multiply
    287,634.94x = 396,936.59 × 172,914.84
  4. Step 4: Simplify right side
    287,634.94x = 68,636,226,085.42
  5. Step 5: Solve for x
    x = 68,636,226,085.42/287,634.94
  6. Step 6: Final answer
    x = 238,622.70

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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.