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Finding the Fourth Proportional to 239,681.69, 330,621.24 and 153,610.11

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Solution

The fourth proportional to 239,681.69, 330,621.24 and 153,610.11 is: 211,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,681.69 : 330,621.24 = 153,610.11 : x
  2. Step 2: Convert to fraction form
    239,681.69/330,621.24 = 153,610.11/x
  3. Step 3: Cross multiply
    239,681.69x = 330,621.24 × 153,610.11
  4. Step 4: Simplify right side
    239,681.69x = 50,786,765,044.74
  5. Step 5: Solve for x
    x = 50,786,765,044.74/239,681.69
  6. Step 6: Final answer
    x = 211,892.56

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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.