Home / 314,819.40-472,286.70-127,849.80

Finding the Fourth Proportional to 314,819.40, 472,286.70 and 127,849.80

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Solution

The fourth proportional to 314,819.40, 472,286.70 and 127,849.80 is: 191,798.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,819.40 : 472,286.70 = 127,849.80 : x
  2. Step 2: Convert to fraction form
    314,819.40/472,286.70 = 127,849.80/x
  3. Step 3: Cross multiply
    314,819.40x = 472,286.70 × 127,849.80
  4. Step 4: Simplify right side
    314,819.40x = 60,381,760,137.66
  5. Step 5: Solve for x
    x = 60,381,760,137.66/314,819.40
  6. Step 6: Final answer
    x = 191,798.09

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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.