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Finding the Fourth Proportional to 375,079.05, 517,615.25 and 211,744.17

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Solution

The fourth proportional to 375,079.05, 517,615.25 and 211,744.17 is: 292,210.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,079.05 : 517,615.25 = 211,744.17 : x
  2. Step 2: Convert to fraction form
    375,079.05/517,615.25 = 211,744.17/x
  3. Step 3: Cross multiply
    375,079.05x = 517,615.25 × 211,744.17
  4. Step 4: Simplify right side
    375,079.05x = 109,602,010,431.87
  5. Step 5: Solve for x
    x = 109,602,010,431.87/375,079.05
  6. Step 6: Final answer
    x = 292,210.43

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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.