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Finding the Fourth Proportional to 354,146.04, 488,666.07 and 199,066.64

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Solution

The fourth proportional to 354,146.04, 488,666.07 and 199,066.64 is: 274,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,146.04 : 488,666.07 = 199,066.64 : x
  2. Step 2: Convert to fraction form
    354,146.04/488,666.07 = 199,066.64/x
  3. Step 3: Cross multiply
    354,146.04x = 488,666.07 × 199,066.64
  4. Step 4: Simplify right side
    354,146.04x = 97,277,110,193.57
  5. Step 5: Solve for x
    x = 97,277,110,193.57/354,146.04
  6. Step 6: Final answer
    x = 274,680.78

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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.