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Finding the Fourth Proportional to 373,434.64, 515,337.44 and 212,289.73

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Solution

The fourth proportional to 373,434.64, 515,337.44 and 212,289.73 is: 292,958.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,434.64 : 515,337.44 = 212,289.73 : x
  2. Step 2: Convert to fraction form
    373,434.64/515,337.44 = 212,289.73/x
  3. Step 3: Cross multiply
    373,434.64x = 515,337.44 × 212,289.73
  4. Step 4: Simplify right side
    373,434.64x = 109,400,845,238.87
  5. Step 5: Solve for x
    x = 109,400,845,238.87/373,434.64
  6. Step 6: Final answer
    x = 292,958.48

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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.