Home / 272,203.43-408,388.05-139,177.13

Finding the Fourth Proportional to 272,203.43, 408,388.05 and 139,177.13

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Solution

The fourth proportional to 272,203.43, 408,388.05 and 139,177.13 is: 208,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,203.43 : 408,388.05 = 139,177.13 : x
  2. Step 2: Convert to fraction form
    272,203.43/408,388.05 = 139,177.13/x
  3. Step 3: Cross multiply
    272,203.43x = 408,388.05 × 139,177.13
  4. Step 4: Simplify right side
    272,203.43x = 56,838,274,683.36
  5. Step 5: Solve for x
    x = 56,838,274,683.36/272,203.43
  6. Step 6: Final answer
    x = 208,808.08

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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.