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Finding the Fourth Proportional to 347,965.79, 480,178.28 and 197,062.79

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Solution

The fourth proportional to 347,965.79, 480,178.28 and 197,062.79 is: 271,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,965.79 : 480,178.28 = 197,062.79 : x
  2. Step 2: Convert to fraction form
    347,965.79/480,178.28 = 197,062.79/x
  3. Step 3: Cross multiply
    347,965.79x = 480,178.28 × 197,062.79
  4. Step 4: Simplify right side
    347,965.79x = 94,625,270,568.89
  5. Step 5: Solve for x
    x = 94,625,270,568.89/347,965.79
  6. Step 6: Final answer
    x = 271,938.43

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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.