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Finding the Fourth Proportional to 354,083.29, 488,619.67 and 201,121.01

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Solution

The fourth proportional to 354,083.29, 488,619.67 and 201,121.01 is: 277,538.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,083.29 : 488,619.67 = 201,121.01 : x
  2. Step 2: Convert to fraction form
    354,083.29/488,619.67 = 201,121.01/x
  3. Step 3: Cross multiply
    354,083.29x = 488,619.67 × 201,121.01
  4. Step 4: Simplify right side
    354,083.29x = 98,271,679,129.43
  5. Step 5: Solve for x
    x = 98,271,679,129.43/354,083.29
  6. Step 6: Final answer
    x = 277,538.31

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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.