Home / 212,494.38-317,186.88-187,272.47

Finding the Fourth Proportional to 212,494.38, 317,186.88 and 187,272.47

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Solution

The fourth proportional to 212,494.38, 317,186.88 and 187,272.47 is: 279,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,494.38 : 317,186.88 = 187,272.47 : x
  2. Step 2: Convert to fraction form
    212,494.38/317,186.88 = 187,272.47/x
  3. Step 3: Cross multiply
    212,494.38x = 317,186.88 × 187,272.47
  4. Step 4: Simplify right side
    212,494.38x = 59,400,370,469.19
  5. Step 5: Solve for x
    x = 59,400,370,469.19/212,494.38
  6. Step 6: Final answer
    x = 279,538.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.