Home / 243,670.83-336,358.22-218,131.20

Finding the Fourth Proportional to 243,670.83, 336,358.22 and 218,131.20

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Solution

The fourth proportional to 243,670.83, 336,358.22 and 218,131.20 is: 301,103.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,670.83 : 336,358.22 = 218,131.20 : x
  2. Step 2: Convert to fraction form
    243,670.83/336,358.22 = 218,131.20/x
  3. Step 3: Cross multiply
    243,670.83x = 336,358.22 × 218,131.20
  4. Step 4: Simplify right side
    243,670.83x = 73,370,221,067.81
  5. Step 5: Solve for x
    x = 73,370,221,067.81/243,670.83
  6. Step 6: Final answer
    x = 301,103.83

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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.