Home / 290,821.10-435,907.65-113,269.10

Finding the Fourth Proportional to 290,821.10, 435,907.65 and 113,269.10

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Solution

The fourth proportional to 290,821.10, 435,907.65 and 113,269.10 is: 169,777.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,821.10 : 435,907.65 = 113,269.10 : x
  2. Step 2: Convert to fraction form
    290,821.10/435,907.65 = 113,269.10/x
  3. Step 3: Cross multiply
    290,821.10x = 435,907.65 × 113,269.10
  4. Step 4: Simplify right side
    290,821.10x = 49,374,867,198.62
  5. Step 5: Solve for x
    x = 49,374,867,198.62/290,821.10
  6. Step 6: Final answer
    x = 169,777.46

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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.