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Finding the Fourth Proportional to 373,808.10, 515,837.16 and 212,647.98

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Solution

The fourth proportional to 373,808.10, 515,837.16 and 212,647.98 is: 293,443.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,808.10 : 515,837.16 = 212,647.98 : x
  2. Step 2: Convert to fraction form
    373,808.10/515,837.16 = 212,647.98/x
  3. Step 3: Cross multiply
    373,808.10x = 515,837.16 × 212,647.98
  4. Step 4: Simplify right side
    373,808.10x = 109,691,730,082.94
  5. Step 5: Solve for x
    x = 109,691,730,082.94/373,808.10
  6. Step 6: Final answer
    x = 293,443.96

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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.