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Finding the Fourth Proportional to 373,639.23, 515,621.16 and 203,873.22

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Solution

The fourth proportional to 373,639.23, 515,621.16 and 203,873.22 is: 281,344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,639.23 : 515,621.16 = 203,873.22 : x
  2. Step 2: Convert to fraction form
    373,639.23/515,621.16 = 203,873.22/x
  3. Step 3: Cross multiply
    373,639.23x = 515,621.16 × 203,873.22
  4. Step 4: Simplify right side
    373,639.23x = 105,121,346,189.34
  5. Step 5: Solve for x
    x = 105,121,346,189.34/373,639.23
  6. Step 6: Final answer
    x = 281,344.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.