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Finding the Fourth Proportional to 223,611.40, 334,833.90 and 213,113.80

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Solution

The fourth proportional to 223,611.40, 334,833.90 and 213,113.80 is: 319,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,611.40 : 334,833.90 = 213,113.80 : x
  2. Step 2: Convert to fraction form
    223,611.40/334,833.90 = 213,113.80/x
  3. Step 3: Cross multiply
    223,611.40x = 334,833.90 × 213,113.80
  4. Step 4: Simplify right side
    223,611.40x = 71,357,724,797.82
  5. Step 5: Solve for x
    x = 71,357,724,797.82/223,611.40
  6. Step 6: Final answer
    x = 319,114.88

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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.