Home / 291,979.28-403,031.72-171,159.44

Finding the Fourth Proportional to 291,979.28, 403,031.72 and 171,159.44

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Solution

The fourth proportional to 291,979.28, 403,031.72 and 171,159.44 is: 236,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,979.28 : 403,031.72 = 171,159.44 : x
  2. Step 2: Convert to fraction form
    291,979.28/403,031.72 = 171,159.44/x
  3. Step 3: Cross multiply
    291,979.28x = 403,031.72 × 171,159.44
  4. Step 4: Simplify right side
    291,979.28x = 68,982,683,497.44
  5. Step 5: Solve for x
    x = 68,982,683,497.44/291,979.28
  6. Step 6: Final answer
    x = 236,258.83

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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.