Home / 288,617.18-398,247.09-161,268.17

Finding the Fourth Proportional to 288,617.18, 398,247.09 and 161,268.17

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Solution

The fourth proportional to 288,617.18, 398,247.09 and 161,268.17 is: 222,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,617.18 : 398,247.09 = 161,268.17 : x
  2. Step 2: Convert to fraction form
    288,617.18/398,247.09 = 161,268.17/x
  3. Step 3: Cross multiply
    288,617.18x = 398,247.09 × 161,268.17
  4. Step 4: Simplify right side
    288,617.18x = 64,224,577,420.89
  5. Step 5: Solve for x
    x = 64,224,577,420.89/288,617.18
  6. Step 6: Final answer
    x = 222,525.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.