Home / 205,522.23-307,508.17-121,328.20

Finding the Fourth Proportional to 205,522.23, 307,508.17 and 121,328.20

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Solution

The fourth proportional to 205,522.23, 307,508.17 and 121,328.20 is: 181,534.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,522.23 : 307,508.17 = 121,328.20 : x
  2. Step 2: Convert to fraction form
    205,522.23/307,508.17 = 121,328.20/x
  3. Step 3: Cross multiply
    205,522.23x = 307,508.17 × 121,328.20
  4. Step 4: Simplify right side
    205,522.23x = 37,309,412,751.39
  5. Step 5: Solve for x
    x = 37,309,412,751.39/205,522.23
  6. Step 6: Final answer
    x = 181,534.68

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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.