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Finding the Fourth Proportional to 220,504.95, 304,319.43 and 129,889.44

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Solution

The fourth proportional to 220,504.95, 304,319.43 and 129,889.44 is: 179,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,504.95 : 304,319.43 = 129,889.44 : x
  2. Step 2: Convert to fraction form
    220,504.95/304,319.43 = 129,889.44/x
  3. Step 3: Cross multiply
    220,504.95x = 304,319.43 × 129,889.44
  4. Step 4: Simplify right side
    220,504.95x = 39,527,880,343.82
  5. Step 5: Solve for x
    x = 39,527,880,343.82/220,504.95
  6. Step 6: Final answer
    x = 179,260.74

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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.