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Finding the Fourth Proportional to 323,819.60, 485,729.40 and 302,824.40

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Solution

The fourth proportional to 323,819.60, 485,729.40 and 302,824.40 is: 454,236.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,819.60 : 485,729.40 = 302,824.40 : x
  2. Step 2: Convert to fraction form
    323,819.60/485,729.40 = 302,824.40/x
  3. Step 3: Cross multiply
    323,819.60x = 485,729.40 × 302,824.40
  4. Step 4: Simplify right side
    323,819.60x = 147,090,714,117.36
  5. Step 5: Solve for x
    x = 147,090,714,117.36/323,819.60
  6. Step 6: Final answer
    x = 454,236.60

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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.