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Finding the Fourth Proportional to 347,771.68, 479,728.78 and 202,560.35

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Solution

The fourth proportional to 347,771.68, 479,728.78 and 202,560.35 is: 279,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,771.68 : 479,728.78 = 202,560.35 : x
  2. Step 2: Convert to fraction form
    347,771.68/479,728.78 = 202,560.35/x
  3. Step 3: Cross multiply
    347,771.68x = 479,728.78 × 202,560.35
  4. Step 4: Simplify right side
    347,771.68x = 97,174,026,676.83
  5. Step 5: Solve for x
    x = 97,174,026,676.83/347,771.68
  6. Step 6: Final answer
    x = 279,419.04

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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.