Home / 320,025.60-479,636.64-162,293.76

Finding the Fourth Proportional to 320,025.60, 479,636.64 and 162,293.76

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Solution

The fourth proportional to 320,025.60, 479,636.64 and 162,293.76 is: 243,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,025.60 : 479,636.64 = 162,293.76 : x
  2. Step 2: Convert to fraction form
    320,025.60/479,636.64 = 162,293.76/x
  3. Step 3: Cross multiply
    320,025.60x = 479,636.64 × 162,293.76
  4. Step 4: Simplify right side
    320,025.60x = 77,842,033,739.37
  5. Step 5: Solve for x
    x = 77,842,033,739.37/320,025.60
  6. Step 6: Final answer
    x = 243,236.90

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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.