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Finding the Fourth Proportional to 340,442.08, 469,892.82 and 197,179

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Solution

The fourth proportional to 340,442.08, 469,892.82 and 197,179 is: 272,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,442.08 : 469,892.82 = 197,179 : x
  2. Step 2: Convert to fraction form
    340,442.08/469,892.82 = 197,179/x
  3. Step 3: Cross multiply
    340,442.08x = 469,892.82 × 197,179
  4. Step 4: Simplify right side
    340,442.08x = 92,652,996,354.78
  5. Step 5: Solve for x
    x = 92,652,996,354.78/340,442.08
  6. Step 6: Final answer
    x = 272,154.95

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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.