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Finding the Fourth Proportional to 239,522.86, 330,537.07 and 130,628.49

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Solution

The fourth proportional to 239,522.86, 330,537.07 and 130,628.49 is: 180,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,522.86 : 330,537.07 = 130,628.49 : x
  2. Step 2: Convert to fraction form
    239,522.86/330,537.07 = 130,628.49/x
  3. Step 3: Cross multiply
    239,522.86x = 330,537.07 × 130,628.49
  4. Step 4: Simplify right side
    239,522.86x = 43,177,558,343.12
  5. Step 5: Solve for x
    x = 43,177,558,343.12/239,522.86
  6. Step 6: Final answer
    x = 180,264.87

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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.