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Finding the Fourth Proportional to 615,851.73, 923,803.10 and 211,322.03

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Solution

The fourth proportional to 615,851.73, 923,803.10 and 211,322.03 is: 316,991.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,851.73 : 923,803.10 = 211,322.03 : x
  2. Step 2: Convert to fraction form
    615,851.73/923,803.10 = 211,322.03/x
  3. Step 3: Cross multiply
    615,851.73x = 923,803.10 × 211,322.03
  4. Step 4: Simplify right side
    615,851.73x = 195,219,940,736.67
  5. Step 5: Solve for x
    x = 195,219,940,736.67/615,851.73
  6. Step 6: Final answer
    x = 316,991.79

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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.