Home / 283,072.70-390,436.26-162,169.94

Finding the Fourth Proportional to 283,072.70, 390,436.26 and 162,169.94

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Solution

The fourth proportional to 283,072.70, 390,436.26 and 162,169.94 is: 223,677.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,072.70 : 390,436.26 = 162,169.94 : x
  2. Step 2: Convert to fraction form
    283,072.70/390,436.26 = 162,169.94/x
  3. Step 3: Cross multiply
    283,072.70x = 390,436.26 × 162,169.94
  4. Step 4: Simplify right side
    283,072.70x = 63,317,024,858.02
  5. Step 5: Solve for x
    x = 63,317,024,858.02/283,072.70
  6. Step 6: Final answer
    x = 223,677.61

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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.