Home / 401,542.81-554,119.09-229,449.86

Finding the Fourth Proportional to 401,542.81, 554,119.09 and 229,449.86

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Solution

The fourth proportional to 401,542.81, 554,119.09 and 229,449.86 is: 316,635.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,542.81 : 554,119.09 = 229,449.86 : x
  2. Step 2: Convert to fraction form
    401,542.81/554,119.09 = 229,449.86/x
  3. Step 3: Cross multiply
    401,542.81x = 554,119.09 × 229,449.86
  4. Step 4: Simplify right side
    401,542.81x = 127,142,546,238.53
  5. Step 5: Solve for x
    x = 127,142,546,238.53/401,542.81
  6. Step 6: Final answer
    x = 316,635.09

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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.