Home / 291,142.96-401,785.12-163,823.04

Finding the Fourth Proportional to 291,142.96, 401,785.12 and 163,823.04

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Solution

The fourth proportional to 291,142.96, 401,785.12 and 163,823.04 is: 226,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,142.96 : 401,785.12 = 163,823.04 : x
  2. Step 2: Convert to fraction form
    291,142.96/401,785.12 = 163,823.04/x
  3. Step 3: Cross multiply
    291,142.96x = 401,785.12 × 163,823.04
  4. Step 4: Simplify right side
    291,142.96x = 65,821,659,785.16
  5. Step 5: Solve for x
    x = 65,821,659,785.16/291,142.96
  6. Step 6: Final answer
    x = 226,080.20

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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.