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Finding the Fourth Proportional to 347,891.04, 480,076.20 and 196,988.40

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Solution

The fourth proportional to 347,891.04, 480,076.20 and 196,988.40 is: 271,836.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,891.04 : 480,076.20 = 196,988.40 : x
  2. Step 2: Convert to fraction form
    347,891.04/480,076.20 = 196,988.40/x
  3. Step 3: Cross multiply
    347,891.04x = 480,076.20 × 196,988.40
  4. Step 4: Simplify right side
    347,891.04x = 94,569,442,516.08
  5. Step 5: Solve for x
    x = 94,569,442,516.08/347,891.04
  6. Step 6: Final answer
    x = 271,836.38

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1.5x scale

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.