Home / 340,578.45-510,929.64-140,790.33

Finding the Fourth Proportional to 340,578.45, 510,929.64 and 140,790.33

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Solution

The fourth proportional to 340,578.45, 510,929.64 and 140,790.33 is: 211,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,578.45 : 510,929.64 = 140,790.33 : x
  2. Step 2: Convert to fraction form
    340,578.45/510,929.64 = 140,790.33/x
  3. Step 3: Cross multiply
    340,578.45x = 510,929.64 × 140,790.33
  4. Step 4: Simplify right side
    340,578.45x = 71,933,952,622.38
  5. Step 5: Solve for x
    x = 71,933,952,622.38/340,578.45
  6. Step 6: Final answer
    x = 211,211.11

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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.