Home / 290,324.25-435,486.38-79,962.19

Finding the Fourth Proportional to 290,324.25, 435,486.38 and 79,962.19

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Solution

The fourth proportional to 290,324.25, 435,486.38 and 79,962.19 is: 119,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,324.25 : 435,486.38 = 79,962.19 : x
  2. Step 2: Convert to fraction form
    290,324.25/435,486.38 = 79,962.19/x
  3. Step 3: Cross multiply
    290,324.25x = 435,486.38 × 79,962.19
  4. Step 4: Simplify right side
    290,324.25x = 34,822,443,171.45
  5. Step 5: Solve for x
    x = 34,822,443,171.45/290,324.25
  6. Step 6: Final answer
    x = 119,943.28

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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.