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Finding the Fourth Proportional to 340,442.58, 469,893.51 and 197,179.50

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Solution

The fourth proportional to 340,442.58, 469,893.51 and 197,179.50 is: 272,155.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,442.58 : 469,893.51 = 197,179.50 : x
  2. Step 2: Convert to fraction form
    340,442.58/469,893.51 = 197,179.50/x
  3. Step 3: Cross multiply
    340,442.58x = 469,893.51 × 197,179.50
  4. Step 4: Simplify right side
    340,442.58x = 92,653,367,355.05
  5. Step 5: Solve for x
    x = 92,653,367,355.05/340,442.58
  6. Step 6: Final answer
    x = 272,155.64

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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.