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Finding the Fourth Proportional to 382,456.60, 573,684.90 and 172,504.60

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Solution

The fourth proportional to 382,456.60, 573,684.90 and 172,504.60 is: 258,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,456.60 : 573,684.90 = 172,504.60 : x
  2. Step 2: Convert to fraction form
    382,456.60/573,684.90 = 172,504.60/x
  3. Step 3: Cross multiply
    382,456.60x = 573,684.90 × 172,504.60
  4. Step 4: Simplify right side
    382,456.60x = 98,963,284,200.54
  5. Step 5: Solve for x
    x = 98,963,284,200.54/382,456.60
  6. Step 6: Final answer
    x = 258,756.90

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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.