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Finding the Fourth Proportional to 222,405.20, 333,607.80 and 211,518.80

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Solution

The fourth proportional to 222,405.20, 333,607.80 and 211,518.80 is: 317,278.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,405.20 : 333,607.80 = 211,518.80 : x
  2. Step 2: Convert to fraction form
    222,405.20/333,607.80 = 211,518.80/x
  3. Step 3: Cross multiply
    222,405.20x = 333,607.80 × 211,518.80
  4. Step 4: Simplify right side
    222,405.20x = 70,564,321,526.64
  5. Step 5: Solve for x
    x = 70,564,321,526.64/222,405.20
  6. Step 6: Final answer
    x = 317,278.20

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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.