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Finding the Fourth Proportional to 340,394.40, 469,703.52 and 197,134.56

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Solution

The fourth proportional to 340,394.40, 469,703.52 and 197,134.56 is: 272,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,394.40 : 469,703.52 = 197,134.56 : x
  2. Step 2: Convert to fraction form
    340,394.40/469,703.52 = 197,134.56/x
  3. Step 3: Cross multiply
    340,394.40x = 469,703.52 × 197,134.56
  4. Step 4: Simplify right side
    340,394.40x = 92,594,796,745.65
  5. Step 5: Solve for x
    x = 92,594,796,745.65/340,394.40
  6. Step 6: Final answer
    x = 272,022.09

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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.