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Finding the Fourth Proportional to 239,710.44, 359,691.24 and 90,054

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Solution

The fourth proportional to 239,710.44, 359,691.24 and 90,054 is: 135,128.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,710.44 : 359,691.24 = 90,054 : x
  2. Step 2: Convert to fraction form
    239,710.44/359,691.24 = 90,054/x
  3. Step 3: Cross multiply
    239,710.44x = 359,691.24 × 90,054
  4. Step 4: Simplify right side
    239,710.44x = 32,391,634,926.96
  5. Step 5: Solve for x
    x = 32,391,634,926.96/239,710.44
  6. Step 6: Final answer
    x = 135,128.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.