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Finding the Fourth Proportional to 358,340.78, 494,497.88 and 197,180.76

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Solution

The fourth proportional to 358,340.78, 494,497.88 and 197,180.76 is: 272,102.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,340.78 : 494,497.88 = 197,180.76 : x
  2. Step 2: Convert to fraction form
    358,340.78/494,497.88 = 197,180.76/x
  3. Step 3: Cross multiply
    358,340.78x = 494,497.88 × 197,180.76
  4. Step 4: Simplify right side
    358,340.78x = 97,505,467,796.79
  5. Step 5: Solve for x
    x = 97,505,467,796.79/358,340.78
  6. Step 6: Final answer
    x = 272,102.63

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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.