Home / 290,189.16-435,371.22-90,530.64

Finding the Fourth Proportional to 290,189.16, 435,371.22 and 90,530.64

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Solution

The fourth proportional to 290,189.16, 435,371.22 and 90,530.64 is: 135,823.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,189.16 : 435,371.22 = 90,530.64 : x
  2. Step 2: Convert to fraction form
    290,189.16/435,371.22 = 90,530.64/x
  3. Step 3: Cross multiply
    290,189.16x = 435,371.22 × 90,530.64
  4. Step 4: Simplify right side
    290,189.16x = 39,414,435,184.18
  5. Step 5: Solve for x
    x = 39,414,435,184.18/290,189.16
  6. Step 6: Final answer
    x = 135,823.25

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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.