Home / 515,172.23-772,212.94-173,290.19

Finding the Fourth Proportional to 515,172.23, 772,212.94 and 173,290.19

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Solution

The fourth proportional to 515,172.23, 772,212.94 and 173,290.19 is: 259,751.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,172.23 : 772,212.94 = 173,290.19 : x
  2. Step 2: Convert to fraction form
    515,172.23/772,212.94 = 173,290.19/x
  3. Step 3: Cross multiply
    515,172.23x = 772,212.94 × 173,290.19
  4. Step 4: Simplify right side
    515,172.23x = 133,816,928,590.37
  5. Step 5: Solve for x
    x = 133,816,928,590.37/515,172.23
  6. Step 6: Final answer
    x = 259,751.83

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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.