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Finding the Fourth Proportional to 355,252.52, 490,255.56 and 194,117.60

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Solution

The fourth proportional to 355,252.52, 490,255.56 and 194,117.60 is: 267,886.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,252.52 : 490,255.56 = 194,117.60 : x
  2. Step 2: Convert to fraction form
    355,252.52/490,255.56 = 194,117.60/x
  3. Step 3: Cross multiply
    355,252.52x = 490,255.56 × 194,117.60
  4. Step 4: Simplify right side
    355,252.52x = 95,167,232,693.86
  5. Step 5: Solve for x
    x = 95,167,232,693.86/355,252.52
  6. Step 6: Final answer
    x = 267,886.16

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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.