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Finding the Fourth Proportional to 320,730.60, 480,059.10 and 250,228.20

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Solution

The fourth proportional to 320,730.60, 480,059.10 and 250,228.20 is: 374,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,730.60 : 480,059.10 = 250,228.20 : x
  2. Step 2: Convert to fraction form
    320,730.60/480,059.10 = 250,228.20/x
  3. Step 3: Cross multiply
    320,730.60x = 480,059.10 × 250,228.20
  4. Step 4: Simplify right side
    320,730.60x = 120,124,324,486.62
  5. Step 5: Solve for x
    x = 120,124,324,486.62/320,730.60
  6. Step 6: Final answer
    x = 374,533.41

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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.