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Finding the Fourth Proportional to 320,844.60, 480,230.10 and 250,342.20

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Solution

The fourth proportional to 320,844.60, 480,230.10 and 250,342.20 is: 374,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,844.60 : 480,230.10 = 250,342.20 : x
  2. Step 2: Convert to fraction form
    320,844.60/480,230.10 = 250,342.20/x
  3. Step 3: Cross multiply
    320,844.60x = 480,230.10 × 250,342.20
  4. Step 4: Simplify right side
    320,844.60x = 120,221,859,740.22
  5. Step 5: Solve for x
    x = 120,221,859,740.22/320,844.60
  6. Step 6: Final answer
    x = 374,704.33

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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.