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Finding the Fourth Proportional to 372,970.20, 514,704.78 and 203,204.28

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Solution

The fourth proportional to 372,970.20, 514,704.78 and 203,204.28 is: 280,425.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,970.20 : 514,704.78 = 203,204.28 : x
  2. Step 2: Convert to fraction form
    372,970.20/514,704.78 = 203,204.28/x
  3. Step 3: Cross multiply
    372,970.20x = 514,704.78 × 203,204.28
  4. Step 4: Simplify right side
    372,970.20x = 104,590,214,232.46
  5. Step 5: Solve for x
    x = 104,590,214,232.46/372,970.20
  6. Step 6: Final answer
    x = 280,425.12

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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.