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Finding the Fourth Proportional to 375,348.54, 517,981.26 and 203,267.85

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Solution

The fourth proportional to 375,348.54, 517,981.26 and 203,267.85 is: 280,509.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,348.54 : 517,981.26 = 203,267.85 : x
  2. Step 2: Convert to fraction form
    375,348.54/517,981.26 = 203,267.85/x
  3. Step 3: Cross multiply
    375,348.54x = 517,981.26 × 203,267.85
  4. Step 4: Simplify right side
    375,348.54x = 105,288,937,060.49
  5. Step 5: Solve for x
    x = 105,288,937,060.49/375,348.54
  6. Step 6: Final answer
    x = 280,509.78

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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.