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Finding the Fourth Proportional to 375,256.52, 517,853.21 and 203,173.64

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Solution

The fourth proportional to 375,256.52, 517,853.21 and 203,173.64 is: 280,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,256.52 : 517,853.21 = 203,173.64 : x
  2. Step 2: Convert to fraction form
    375,256.52/517,853.21 = 203,173.64/x
  3. Step 3: Cross multiply
    375,256.52x = 517,853.21 × 203,173.64
  4. Step 4: Simplify right side
    375,256.52x = 105,214,121,661.38
  5. Step 5: Solve for x
    x = 105,214,121,661.38/375,256.52
  6. Step 6: Final answer
    x = 280,379.20

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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.