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Finding the Fourth Proportional to 355,308.32, 490,304.66 and 194,164.62

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Solution

The fourth proportional to 355,308.32, 490,304.66 and 194,164.62 is: 267,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,308.32 : 490,304.66 = 194,164.62 : x
  2. Step 2: Convert to fraction form
    355,308.32/490,304.66 = 194,164.62/x
  3. Step 3: Cross multiply
    355,308.32x = 490,304.66 × 194,164.62
  4. Step 4: Simplify right side
    355,308.32x = 95,199,817,022.31
  5. Step 5: Solve for x
    x = 95,199,817,022.31/355,308.32
  6. Step 6: Final answer
    x = 267,935.80

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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.