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Finding the Fourth Proportional to 371,995.34, 513,331.77 and 202,227.98

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Solution

The fourth proportional to 371,995.34, 513,331.77 and 202,227.98 is: 279,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,995.34 : 513,331.77 = 202,227.98 : x
  2. Step 2: Convert to fraction form
    371,995.34/513,331.77 = 202,227.98/x
  3. Step 3: Cross multiply
    371,995.34x = 513,331.77 × 202,227.98
  4. Step 4: Simplify right side
    371,995.34x = 103,810,046,916.93
  5. Step 5: Solve for x
    x = 103,810,046,916.93/371,995.34
  6. Step 6: Final answer
    x = 279,062.76

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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.