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Finding the Fourth Proportional to 223,343.70, 335,015.55 and 212,975.70

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Solution

The fourth proportional to 223,343.70, 335,015.55 and 212,975.70 is: 319,463.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,343.70 : 335,015.55 = 212,975.70 : x
  2. Step 2: Convert to fraction form
    223,343.70/335,015.55 = 212,975.70/x
  3. Step 3: Cross multiply
    223,343.70x = 335,015.55 × 212,975.70
  4. Step 4: Simplify right side
    223,343.70x = 71,350,171,272.14
  5. Step 5: Solve for x
    x = 71,350,171,272.14/223,343.70
  6. Step 6: Final answer
    x = 319,463.55

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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.