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Finding the Fourth Proportional to 221,353.60, 330,303.97 and 197,497.15

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Solution

The fourth proportional to 221,353.60, 330,303.97 and 197,497.15 is: 294,705.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,353.60 : 330,303.97 = 197,497.15 : x
  2. Step 2: Convert to fraction form
    221,353.60/330,303.97 = 197,497.15/x
  3. Step 3: Cross multiply
    221,353.60x = 330,303.97 × 197,497.15
  4. Step 4: Simplify right side
    221,353.60x = 65,234,092,708.69
  5. Step 5: Solve for x
    x = 65,234,092,708.69/221,353.60
  6. Step 6: Final answer
    x = 294,705.36

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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.