Home / 340,321.40-510,514.22-100,436.21

Finding the Fourth Proportional to 340,321.40, 510,514.22 and 100,436.21

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Solution

The fourth proportional to 340,321.40, 510,514.22 and 100,436.21 is: 150,663.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,321.40 : 510,514.22 = 100,436.21 : x
  2. Step 2: Convert to fraction form
    340,321.40/510,514.22 = 100,436.21/x
  3. Step 3: Cross multiply
    340,321.40x = 510,514.22 × 100,436.21
  4. Step 4: Simplify right side
    340,321.40x = 51,274,113,407.91
  5. Step 5: Solve for x
    x = 51,274,113,407.91/340,321.40
  6. Step 6: Final answer
    x = 150,663.79

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1.5x scale

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.