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Finding the Fourth Proportional to 385,104.26, 577,793.20 and 171,852.78

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Solution

The fourth proportional to 385,104.26, 577,793.20 and 171,852.78 is: 257,840.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,104.26 : 577,793.20 = 171,852.78 : x
  2. Step 2: Convert to fraction form
    385,104.26/577,793.20 = 171,852.78/x
  3. Step 3: Cross multiply
    385,104.26x = 577,793.20 × 171,852.78
  4. Step 4: Simplify right side
    385,104.26x = 99,295,367,685.10
  5. Step 5: Solve for x
    x = 99,295,367,685.10/385,104.26
  6. Step 6: Final answer
    x = 257,840.22

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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.