Home / 401,945.81-554,664.33-238,609.10

Finding the Fourth Proportional to 401,945.81, 554,664.33 and 238,609.10

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Solution

The fourth proportional to 401,945.81, 554,664.33 and 238,609.10 is: 329,268.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,945.81 : 554,664.33 = 238,609.10 : x
  2. Step 2: Convert to fraction form
    401,945.81/554,664.33 = 238,609.10/x
  3. Step 3: Cross multiply
    401,945.81x = 554,664.33 × 238,609.10
  4. Step 4: Simplify right side
    401,945.81x = 132,347,957,970.06
  5. Step 5: Solve for x
    x = 132,347,957,970.06/401,945.81
  6. Step 6: Final answer
    x = 329,268.17

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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.