Home / 272,133.36-408,126.24-172,143.36

Finding the Fourth Proportional to 272,133.36, 408,126.24 and 172,143.36

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Solution

The fourth proportional to 272,133.36, 408,126.24 and 172,143.36 is: 258,168.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,133.36 : 408,126.24 = 172,143.36 : x
  2. Step 2: Convert to fraction form
    272,133.36/408,126.24 = 172,143.36/x
  3. Step 3: Cross multiply
    272,133.36x = 408,126.24 × 172,143.36
  4. Step 4: Simplify right side
    272,133.36x = 70,256,222,257.77
  5. Step 5: Solve for x
    x = 70,256,222,257.77/272,133.36
  6. Step 6: Final answer
    x = 258,168.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.