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Finding the Fourth Proportional to 221,351.10, 330,300.25 and 197,494.65

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Solution

The fourth proportional to 221,351.10, 330,300.25 and 197,494.65 is: 294,701.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,351.10 : 330,300.25 = 197,494.65 : x
  2. Step 2: Convert to fraction form
    221,351.10/330,300.25 = 197,494.65/x
  3. Step 3: Cross multiply
    221,351.10x = 330,300.25 × 197,494.65
  4. Step 4: Simplify right side
    221,351.10x = 65,232,531,774.93
  5. Step 5: Solve for x
    x = 65,232,531,774.93/221,351.10
  6. Step 6: Final answer
    x = 294,701.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.