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Finding the Fourth Proportional to 221,313.60, 331,970.40 and 55,101.60

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Solution

The fourth proportional to 221,313.60, 331,970.40 and 55,101.60 is: 82,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,313.60 : 331,970.40 = 55,101.60 : x
  2. Step 2: Convert to fraction form
    221,313.60/331,970.40 = 55,101.60/x
  3. Step 3: Cross multiply
    221,313.60x = 331,970.40 × 55,101.60
  4. Step 4: Simplify right side
    221,313.60x = 18,292,100,192.64
  5. Step 5: Solve for x
    x = 18,292,100,192.64/221,313.60
  6. Step 6: Final answer
    x = 82,652.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.