Home / 513,268.98-769,890.51-139,282.26

Finding the Fourth Proportional to 513,268.98, 769,890.51 and 139,282.26

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Solution

The fourth proportional to 513,268.98, 769,890.51 and 139,282.26 is: 208,919.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,268.98 : 769,890.51 = 139,282.26 : x
  2. Step 2: Convert to fraction form
    513,268.98/769,890.51 = 139,282.26/x
  3. Step 3: Cross multiply
    513,268.98x = 769,890.51 × 139,282.26
  4. Step 4: Simplify right side
    513,268.98x = 107,232,090,185.35
  5. Step 5: Solve for x
    x = 107,232,090,185.35/513,268.98
  6. Step 6: Final answer
    x = 208,919.87

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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.