Home / 290,163.24-435,367.89-140,515.03

Finding the Fourth Proportional to 290,163.24, 435,367.89 and 140,515.03

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Solution

The fourth proportional to 290,163.24, 435,367.89 and 140,515.03 is: 210,832.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,163.24 : 435,367.89 = 140,515.03 : x
  2. Step 2: Convert to fraction form
    290,163.24/435,367.89 = 140,515.03/x
  3. Step 3: Cross multiply
    290,163.24x = 435,367.89 × 140,515.03
  4. Step 4: Simplify right side
    290,163.24x = 61,175,732,124.39
  5. Step 5: Solve for x
    x = 61,175,732,124.39/290,163.24
  6. Step 6: Final answer
    x = 210,832.12

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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.