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Finding the Fourth Proportional to 239,784.66, 330,879.22 and 132,347.72

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Solution

The fourth proportional to 239,784.66, 330,879.22 and 132,347.72 is: 182,626.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,784.66 : 330,879.22 = 132,347.72 : x
  2. Step 2: Convert to fraction form
    239,784.66/330,879.22 = 132,347.72/x
  3. Step 3: Cross multiply
    239,784.66x = 330,879.22 × 132,347.72
  4. Step 4: Simplify right side
    239,784.66x = 43,791,110,858.71
  5. Step 5: Solve for x
    x = 43,791,110,858.71/239,784.66
  6. Step 6: Final answer
    x = 182,626.82

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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.