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Finding the Fourth Proportional to 239,483.89, 330,475.89 and 136,104.63

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Solution

The fourth proportional to 239,483.89, 330,475.89 and 136,104.63 is: 187,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,483.89 : 330,475.89 = 136,104.63 : x
  2. Step 2: Convert to fraction form
    239,483.89/330,475.89 = 136,104.63/x
  3. Step 3: Cross multiply
    239,483.89x = 330,475.89 × 136,104.63
  4. Step 4: Simplify right side
    239,483.89x = 44,979,298,732.37
  5. Step 5: Solve for x
    x = 44,979,298,732.37/239,483.89
  6. Step 6: Final answer
    x = 187,817.64

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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.