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Finding the Fourth Proportional to 220,267.76, 303,969.48 and 130,843.76

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Solution

The fourth proportional to 220,267.76, 303,969.48 and 130,843.76 is: 180,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,267.76 : 303,969.48 = 130,843.76 : x
  2. Step 2: Convert to fraction form
    220,267.76/303,969.48 = 130,843.76/x
  3. Step 3: Cross multiply
    220,267.76x = 303,969.48 × 130,843.76
  4. Step 4: Simplify right side
    220,267.76x = 39,772,509,688.44
  5. Step 5: Solve for x
    x = 39,772,509,688.44/220,267.76
  6. Step 6: Final answer
    x = 180,564.37

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1.5x scale

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.