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Finding the Fourth Proportional to 239,759.39, 330,868.63 and 130,864.71

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Solution

The fourth proportional to 239,759.39, 330,868.63 and 130,864.71 is: 180,593.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,759.39 : 330,868.63 = 130,864.71 : x
  2. Step 2: Convert to fraction form
    239,759.39/330,868.63 = 130,864.71/x
  3. Step 3: Cross multiply
    239,759.39x = 330,868.63 × 130,864.71
  4. Step 4: Simplify right side
    239,759.39x = 43,299,028,717.39
  5. Step 5: Solve for x
    x = 43,299,028,717.39/239,759.39
  6. Step 6: Final answer
    x = 180,593.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.