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Finding the Fourth Proportional to 375,347.35, 517,979.60 and 203,266.66

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Solution

The fourth proportional to 375,347.35, 517,979.60 and 203,266.66 is: 280,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,347.35 : 517,979.60 = 203,266.66 : x
  2. Step 2: Convert to fraction form
    375,347.35/517,979.60 = 203,266.66/x
  3. Step 3: Cross multiply
    375,347.35x = 517,979.60 × 203,266.66
  4. Step 4: Simplify right side
    375,347.35x = 105,287,983,240.14
  5. Step 5: Solve for x
    x = 105,287,983,240.14/375,347.35
  6. Step 6: Final answer
    x = 280,508.13

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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.