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Finding the Fourth Proportional to 385,009.41, 577,469.98 and 100,727.39

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Solution

The fourth proportional to 385,009.41, 577,469.98 and 100,727.39 is: 151,079.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,009.41 : 577,469.98 = 100,727.39 : x
  2. Step 2: Convert to fraction form
    385,009.41/577,469.98 = 100,727.39/x
  3. Step 3: Cross multiply
    385,009.41x = 577,469.98 × 100,727.39
  4. Step 4: Simplify right side
    385,009.41x = 58,167,045,458.34
  5. Step 5: Solve for x
    x = 58,167,045,458.34/385,009.41
  6. Step 6: Final answer
    x = 151,079.54

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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.