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Finding the Fourth Proportional to 373,877.44, 515,980.32 and 212,739.28

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Solution

The fourth proportional to 373,877.44, 515,980.32 and 212,739.28 is: 293,596.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,877.44 : 515,980.32 = 212,739.28 : x
  2. Step 2: Convert to fraction form
    373,877.44/515,980.32 = 212,739.28/x
  3. Step 3: Cross multiply
    373,877.44x = 515,980.32 × 212,739.28
  4. Step 4: Simplify right side
    373,877.44x = 109,769,281,770.97
  5. Step 5: Solve for x
    x = 109,769,281,770.97/373,877.44
  6. Step 6: Final answer
    x = 293,596.97

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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.