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Finding the Fourth Proportional to 373,516.42, 515,437.43 and 220,604.11

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Solution

The fourth proportional to 373,516.42, 515,437.43 and 220,604.11 is: 304,424.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,516.42 : 515,437.43 = 220,604.11 : x
  2. Step 2: Convert to fraction form
    373,516.42/515,437.43 = 220,604.11/x
  3. Step 3: Cross multiply
    373,516.42x = 515,437.43 × 220,604.11
  4. Step 4: Simplify right side
    373,516.42x = 113,707,617,150.07
  5. Step 5: Solve for x
    x = 113,707,617,150.07/373,516.42
  6. Step 6: Final answer
    x = 304,424.68

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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.