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Finding the Fourth Proportional to 260,614.44, 359,332.74 and 220,257

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Solution

The fourth proportional to 260,614.44, 359,332.74 and 220,257 is: 303,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,614.44 : 359,332.74 = 220,257 : x
  2. Step 2: Convert to fraction form
    260,614.44/359,332.74 = 220,257/x
  3. Step 3: Cross multiply
    260,614.44x = 359,332.74 × 220,257
  4. Step 4: Simplify right side
    260,614.44x = 79,145,551,314.18
  5. Step 5: Solve for x
    x = 79,145,551,314.18/260,614.44
  6. Step 6: Final answer
    x = 303,688.28

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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.