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Finding the Fourth Proportional to 320,873.60, 481,310.40 and 163,409.60

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Solution

The fourth proportional to 320,873.60, 481,310.40 and 163,409.60 is: 245,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,873.60 : 481,310.40 = 163,409.60 : x
  2. Step 2: Convert to fraction form
    320,873.60/481,310.40 = 163,409.60/x
  3. Step 3: Cross multiply
    320,873.60x = 481,310.40 × 163,409.60
  4. Step 4: Simplify right side
    320,873.60x = 78,650,739,939.84
  5. Step 5: Solve for x
    x = 78,650,739,939.84/320,873.60
  6. Step 6: Final answer
    x = 245,114.40

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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.