Home / 487,949.74-731,362.92-188,297.80

Finding the Fourth Proportional to 487,949.74, 731,362.92 and 188,297.80

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Solution

The fourth proportional to 487,949.74, 731,362.92 and 188,297.80 is: 282,229.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,949.74 : 731,362.92 = 188,297.80 : x
  2. Step 2: Convert to fraction form
    487,949.74/731,362.92 = 188,297.80/x
  3. Step 3: Cross multiply
    487,949.74x = 731,362.92 × 188,297.80
  4. Step 4: Simplify right side
    487,949.74x = 137,714,028,837.58
  5. Step 5: Solve for x
    x = 137,714,028,837.58/487,949.74
  6. Step 6: Final answer
    x = 282,229.95

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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.