Home / 401,141.28-553,630.24-231,371.68

Finding the Fourth Proportional to 401,141.28, 553,630.24 and 231,371.68

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Solution

The fourth proportional to 401,141.28, 553,630.24 and 231,371.68 is: 319,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,141.28 : 553,630.24 = 231,371.68 : x
  2. Step 2: Convert to fraction form
    401,141.28/553,630.24 = 231,371.68/x
  3. Step 3: Cross multiply
    401,141.28x = 553,630.24 × 231,371.68
  4. Step 4: Simplify right side
    401,141.28x = 128,094,358,727.60
  5. Step 5: Solve for x
    x = 128,094,358,727.60/401,141.28
  6. Step 6: Final answer
    x = 319,324.80

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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.