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Finding the Fourth Proportional to 223,777.71, 335,670.21 and 212,422.32

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Solution

The fourth proportional to 223,777.71, 335,670.21 and 212,422.32 is: 318,636.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,777.71 : 335,670.21 = 212,422.32 : x
  2. Step 2: Convert to fraction form
    223,777.71/335,670.21 = 212,422.32/x
  3. Step 3: Cross multiply
    223,777.71x = 335,670.21 × 212,422.32
  4. Step 4: Simplify right side
    223,777.71x = 71,303,844,763.09
  5. Step 5: Solve for x
    x = 71,303,844,763.09/223,777.71
  6. Step 6: Final answer
    x = 318,636.94

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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.