Home / 290,269.38-435,431.58-112,790.10

Finding the Fourth Proportional to 290,269.38, 435,431.58 and 112,790.10

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Solution

The fourth proportional to 290,269.38, 435,431.58 and 112,790.10 is: 169,195.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,269.38 : 435,431.58 = 112,790.10 : x
  2. Step 2: Convert to fraction form
    290,269.38/435,431.58 = 112,790.10/x
  3. Step 3: Cross multiply
    290,269.38x = 435,431.58 × 112,790.10
  4. Step 4: Simplify right side
    290,269.38x = 49,112,371,451.36
  5. Step 5: Solve for x
    x = 49,112,371,451.36/290,269.38
  6. Step 6: Final answer
    x = 169,195.84

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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.