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Finding the Fourth Proportional to 373,548.70, 515,541.41 and 212,427.96

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Solution

The fourth proportional to 373,548.70, 515,541.41 and 212,427.96 is: 293,175.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,548.70 : 515,541.41 = 212,427.96 : x
  2. Step 2: Convert to fraction form
    373,548.70/515,541.41 = 212,427.96/x
  3. Step 3: Cross multiply
    373,548.70x = 515,541.41 × 212,427.96
  4. Step 4: Simplify right side
    373,548.70x = 109,515,410,021.82
  5. Step 5: Solve for x
    x = 109,515,410,021.82/373,548.70
  6. Step 6: Final answer
    x = 293,175.72

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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.