Home / 451,933.76-678,010.08-136,371.44

Finding the Fourth Proportional to 451,933.76, 678,010.08 and 136,371.44

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Solution

The fourth proportional to 451,933.76, 678,010.08 and 136,371.44 is: 204,590.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,933.76 : 678,010.08 = 136,371.44 : x
  2. Step 2: Convert to fraction form
    451,933.76/678,010.08 = 136,371.44/x
  3. Step 3: Cross multiply
    451,933.76x = 678,010.08 × 136,371.44
  4. Step 4: Simplify right side
    451,933.76x = 92,461,210,944.12
  5. Step 5: Solve for x
    x = 92,461,210,944.12/451,933.76
  6. Step 6: Final answer
    x = 204,590.18

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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.