Home / 380,336.72-570,194.04-143,544.56

Finding the Fourth Proportional to 380,336.72, 570,194.04 and 143,544.56

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Solution

The fourth proportional to 380,336.72, 570,194.04 and 143,544.56 is: 215,199.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,336.72 : 570,194.04 = 143,544.56 : x
  2. Step 2: Convert to fraction form
    380,336.72/570,194.04 = 143,544.56/x
  3. Step 3: Cross multiply
    380,336.72x = 570,194.04 × 143,544.56
  4. Step 4: Simplify right side
    380,336.72x = 81,848,252,586.42
  5. Step 5: Solve for x
    x = 81,848,252,586.42/380,336.72
  6. Step 6: Final answer
    x = 215,199.45

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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.