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Finding the Fourth Proportional to 222,238.81, 333,378.47 and 72,440.65

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Solution

The fourth proportional to 222,238.81, 333,378.47 and 72,440.65 is: 108,667.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,238.81 : 333,378.47 = 72,440.65 : x
  2. Step 2: Convert to fraction form
    222,238.81/333,378.47 = 72,440.65/x
  3. Step 3: Cross multiply
    222,238.81x = 333,378.47 × 72,440.65
  4. Step 4: Simplify right side
    222,238.81x = 24,150,153,062.81
  5. Step 5: Solve for x
    x = 24,150,153,062.81/222,238.81
  6. Step 6: Final answer
    x = 108,667.58

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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.