Home / 221,844.72-306,177.40-126,360.28

Finding the Fourth Proportional to 221,844.72, 306,177.40 and 126,360.28

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Solution

The fourth proportional to 221,844.72, 306,177.40 and 126,360.28 is: 174,395.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,844.72 : 306,177.40 = 126,360.28 : x
  2. Step 2: Convert to fraction form
    221,844.72/306,177.40 = 126,360.28/x
  3. Step 3: Cross multiply
    221,844.72x = 306,177.40 × 126,360.28
  4. Step 4: Simplify right side
    221,844.72x = 38,688,661,993.67
  5. Step 5: Solve for x
    x = 38,688,661,993.67/221,844.72
  6. Step 6: Final answer
    x = 174,395.23

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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.