Home / 245,156.21-338,179.05-227,817

Finding the Fourth Proportional to 245,156.21, 338,179.05 and 227,817

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Solution

The fourth proportional to 245,156.21, 338,179.05 and 227,817 is: 314,260.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,156.21 : 338,179.05 = 227,817 : x
  2. Step 2: Convert to fraction form
    245,156.21/338,179.05 = 227,817/x
  3. Step 3: Cross multiply
    245,156.21x = 338,179.05 × 227,817
  4. Step 4: Simplify right side
    245,156.21x = 77,042,936,633.85
  5. Step 5: Solve for x
    x = 77,042,936,633.85/245,156.21
  6. Step 6: Final answer
    x = 314,260.60

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1.5x scale

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.