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Finding the Fourth Proportional to 375,123.88, 517,675.09 and 213,988.46

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Solution

The fourth proportional to 375,123.88, 517,675.09 and 213,988.46 is: 295,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,123.88 : 517,675.09 = 213,988.46 : x
  2. Step 2: Convert to fraction form
    375,123.88/517,675.09 = 213,988.46/x
  3. Step 3: Cross multiply
    375,123.88x = 517,675.09 × 213,988.46
  4. Step 4: Simplify right side
    375,123.88x = 110,776,493,722.38
  5. Step 5: Solve for x
    x = 110,776,493,722.38/375,123.88
  6. Step 6: Final answer
    x = 295,306.43

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1.5x scale

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.