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Finding the Fourth Proportional to 239,830.13, 330,963.60 and 132,397.88

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Solution

The fourth proportional to 239,830.13, 330,963.60 and 132,397.88 is: 182,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,830.13 : 330,963.60 = 132,397.88 : x
  2. Step 2: Convert to fraction form
    239,830.13/330,963.60 = 132,397.88/x
  3. Step 3: Cross multiply
    239,830.13x = 330,963.60 × 132,397.88
  4. Step 4: Simplify right side
    239,830.13x = 43,818,877,838.84
  5. Step 5: Solve for x
    x = 43,818,877,838.84/239,830.13
  6. Step 6: Final answer
    x = 182,707.97

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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.