Home / 262,513.20-393,316.20-121,983.60

Finding the Fourth Proportional to 262,513.20, 393,316.20 and 121,983.60

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Solution

The fourth proportional to 262,513.20, 393,316.20 and 121,983.60 is: 182,764.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,513.20 : 393,316.20 = 121,983.60 : x
  2. Step 2: Convert to fraction form
    262,513.20/393,316.20 = 121,983.60/x
  3. Step 3: Cross multiply
    262,513.20x = 393,316.20 × 121,983.60
  4. Step 4: Simplify right side
    262,513.20x = 47,978,126,014.32
  5. Step 5: Solve for x
    x = 47,978,126,014.32/262,513.20
  6. Step 6: Final answer
    x = 182,764.62

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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.