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Finding the Fourth Proportional to 243,261.88, 364,648.74 and 100,913.56

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Solution

The fourth proportional to 243,261.88, 364,648.74 and 100,913.56 is: 151,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,261.88 : 364,648.74 = 100,913.56 : x
  2. Step 2: Convert to fraction form
    243,261.88/364,648.74 = 100,913.56/x
  3. Step 3: Cross multiply
    243,261.88x = 364,648.74 × 100,913.56
  4. Step 4: Simplify right side
    243,261.88x = 36,798,002,502.91
  5. Step 5: Solve for x
    x = 36,798,002,502.91/243,261.88
  6. Step 6: Final answer
    x = 151,269.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.