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Finding the Fourth Proportional to 371,279.54, 512,352.06 and 201,510.02

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Solution

The fourth proportional to 371,279.54, 512,352.06 and 201,510.02 is: 278,076.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,279.54 : 512,352.06 = 201,510.02 : x
  2. Step 2: Convert to fraction form
    371,279.54/512,352.06 = 201,510.02/x
  3. Step 3: Cross multiply
    371,279.54x = 512,352.06 × 201,510.02
  4. Step 4: Simplify right side
    371,279.54x = 103,244,073,857.64
  5. Step 5: Solve for x
    x = 103,244,073,857.64/371,279.54
  6. Step 6: Final answer
    x = 278,076.39

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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.