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Finding the Fourth Proportional to 355,104.61, 490,041.45 and 193,959.76

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Solution

The fourth proportional to 355,104.61, 490,041.45 and 193,959.76 is: 267,662.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,104.61 : 490,041.45 = 193,959.76 : x
  2. Step 2: Convert to fraction form
    355,104.61/490,041.45 = 193,959.76/x
  3. Step 3: Cross multiply
    355,104.61x = 490,041.45 × 193,959.76
  4. Step 4: Simplify right side
    355,104.61x = 95,048,322,032.05
  5. Step 5: Solve for x
    x = 95,048,322,032.05/355,104.61
  6. Step 6: Final answer
    x = 267,662.88

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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.