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Finding the Fourth Proportional to 372,978.45, 559,955.51 and 221,452.16

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Solution

The fourth proportional to 372,978.45, 559,955.51 and 221,452.16 is: 332,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,978.45 : 559,955.51 = 221,452.16 : x
  2. Step 2: Convert to fraction form
    372,978.45/559,955.51 = 221,452.16/x
  3. Step 3: Cross multiply
    372,978.45x = 559,955.51 × 221,452.16
  4. Step 4: Simplify right side
    372,978.45x = 124,003,353,286.36
  5. Step 5: Solve for x
    x = 124,003,353,286.36/372,978.45
  6. Step 6: Final answer
    x = 332,467.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.