Home / 513,213.33-769,820.40-139,236.33

Finding the Fourth Proportional to 513,213.33, 769,820.40 and 139,236.33

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Solution

The fourth proportional to 513,213.33, 769,820.40 and 139,236.33 is: 208,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,213.33 : 769,820.40 = 139,236.33 : x
  2. Step 2: Convert to fraction form
    513,213.33/769,820.40 = 139,236.33/x
  3. Step 3: Cross multiply
    513,213.33x = 769,820.40 × 139,236.33
  4. Step 4: Simplify right side
    513,213.33x = 107,186,967,255.13
  5. Step 5: Solve for x
    x = 107,186,967,255.13/513,213.33
  6. Step 6: Final answer
    x = 208,854.60

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Similar ratio
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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.