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Finding the Fourth Proportional to 615,297.33, 922,940.53 and 215,844.51

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Solution

The fourth proportional to 615,297.33, 922,940.53 and 215,844.51 is: 323,764.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,297.33 : 922,940.53 = 215,844.51 : x
  2. Step 2: Convert to fraction form
    615,297.33/922,940.53 = 215,844.51/x
  3. Step 3: Cross multiply
    615,297.33x = 922,940.53 × 215,844.51
  4. Step 4: Simplify right side
    615,297.33x = 199,211,649,378.41
  5. Step 5: Solve for x
    x = 199,211,649,378.41/615,297.33
  6. Step 6: Final answer
    x = 323,764.85

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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.