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Finding the Fourth Proportional to 371,880, 559,843.56 and 338,812.56

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Solution

The fourth proportional to 371,880, 559,843.56 and 338,812.56 is: 510,062.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,880 : 559,843.56 = 338,812.56 : x
  2. Step 2: Convert to fraction form
    371,880/559,843.56 = 338,812.56/x
  3. Step 3: Cross multiply
    371,880x = 559,843.56 × 338,812.56
  4. Step 4: Simplify right side
    371,880x = 189,682,029,763.11
  5. Step 5: Solve for x
    x = 189,682,029,763.11/371,880
  6. Step 6: Final answer
    x = 510,062.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.