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Finding the Fourth Proportional to 375,348.61, 517,982.48 and 203,266.68

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Solution

The fourth proportional to 375,348.61, 517,982.48 and 203,266.68 is: 280,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,348.61 : 517,982.48 = 203,266.68 : x
  2. Step 2: Convert to fraction form
    375,348.61/517,982.48 = 203,266.68/x
  3. Step 3: Cross multiply
    375,348.61x = 517,982.48 × 203,266.68
  4. Step 4: Simplify right side
    375,348.61x = 105,288,579,007.77
  5. Step 5: Solve for x
    x = 105,288,579,007.77/375,348.61
  6. Step 6: Final answer
    x = 280,508.78

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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.