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Finding the Fourth Proportional to 375,037.27, 517,574.81 and 211,721.43

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Solution

The fourth proportional to 375,037.27, 517,574.81 and 211,721.43 is: 292,188.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,037.27 : 517,574.81 = 211,721.43 : x
  2. Step 2: Convert to fraction form
    375,037.27/517,574.81 = 211,721.43/x
  3. Step 3: Cross multiply
    375,037.27x = 517,574.81 × 211,721.43
  4. Step 4: Simplify right side
    375,037.27x = 109,581,676,967.01
  5. Step 5: Solve for x
    x = 109,581,676,967.01/375,037.27
  6. Step 6: Final answer
    x = 292,188.76

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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.