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Finding the Fourth Proportional to 201,132.60, 301,370.85 and 172,920.30

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Solution

The fourth proportional to 201,132.60, 301,370.85 and 172,920.30 is: 259,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,132.60 : 301,370.85 = 172,920.30 : x
  2. Step 2: Convert to fraction form
    201,132.60/301,370.85 = 172,920.30/x
  3. Step 3: Cross multiply
    201,132.60x = 301,370.85 × 172,920.30
  4. Step 4: Simplify right side
    201,132.60x = 52,113,137,793.26
  5. Step 5: Solve for x
    x = 52,113,137,793.26/201,132.60
  6. Step 6: Final answer
    x = 259,098.41

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1.5x scale

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.