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Finding the Fourth Proportional to 372,274.40, 558,411.60 and 230,556.80

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Solution

The fourth proportional to 372,274.40, 558,411.60 and 230,556.80 is: 345,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,274.40 : 558,411.60 = 230,556.80 : x
  2. Step 2: Convert to fraction form
    372,274.40/558,411.60 = 230,556.80/x
  3. Step 3: Cross multiply
    372,274.40x = 558,411.60 × 230,556.80
  4. Step 4: Simplify right side
    372,274.40x = 128,745,591,578.88
  5. Step 5: Solve for x
    x = 128,745,591,578.88/372,274.40
  6. Step 6: Final answer
    x = 345,835.20

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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.