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Finding the Fourth Proportional to 288,992.82, 398,815.83 and 174,270.90

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Solution

The fourth proportional to 288,992.82, 398,815.83 and 174,270.90 is: 240,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,992.82 : 398,815.83 = 174,270.90 : x
  2. Step 2: Convert to fraction form
    288,992.82/398,815.83 = 174,270.90/x
  3. Step 3: Cross multiply
    288,992.82x = 398,815.83 × 174,270.90
  4. Step 4: Simplify right side
    288,992.82x = 69,501,993,628.35
  5. Step 5: Solve for x
    x = 69,501,993,628.35/288,992.82
  6. Step 6: Final answer
    x = 240,497.30

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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.