Home / 268,688.27-403,019.25-100,195.45

Finding the Fourth Proportional to 268,688.27, 403,019.25 and 100,195.45

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Solution

The fourth proportional to 268,688.27, 403,019.25 and 100,195.45 is: 150,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,688.27 : 403,019.25 = 100,195.45 : x
  2. Step 2: Convert to fraction form
    268,688.27/403,019.25 = 100,195.45/x
  3. Step 3: Cross multiply
    268,688.27x = 403,019.25 × 100,195.45
  4. Step 4: Simplify right side
    268,688.27x = 40,380,693,729.13
  5. Step 5: Solve for x
    x = 40,380,693,729.13/268,688.27
  6. Step 6: Final answer
    x = 150,288.26

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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.