Home / 513,243-769,814.97-158,161.68

Finding the Fourth Proportional to 513,243, 769,814.97 and 158,161.68

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Solution

The fourth proportional to 513,243, 769,814.97 and 158,161.68 is: 237,227.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,243 : 769,814.97 = 158,161.68 : x
  2. Step 2: Convert to fraction form
    513,243/769,814.97 = 158,161.68/x
  3. Step 3: Cross multiply
    513,243x = 769,814.97 × 158,161.68
  4. Step 4: Simplify right side
    513,243x = 121,755,228,944.35
  5. Step 5: Solve for x
    x = 121,755,228,944.35/513,243
  6. Step 6: Final answer
    x = 237,227.26

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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.