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Finding the Fourth Proportional to 371,892.84, 513,215.51 and 202,127.37

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Solution

The fourth proportional to 371,892.84, 513,215.51 and 202,127.37 is: 278,937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,892.84 : 513,215.51 = 202,127.37 : x
  2. Step 2: Convert to fraction form
    371,892.84/513,215.51 = 202,127.37/x
  3. Step 3: Cross multiply
    371,892.84x = 513,215.51 × 202,127.37
  4. Step 4: Simplify right side
    371,892.84x = 103,734,900,268.87
  5. Step 5: Solve for x
    x = 103,734,900,268.87/371,892.84
  6. Step 6: Final answer
    x = 278,937.61

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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.