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Finding the Fourth Proportional to 306,849.12, 459,745.56 and 239,515.44

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Solution

The fourth proportional to 306,849.12, 459,745.56 and 239,515.44 is: 358,860.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,849.12 : 459,745.56 = 239,515.44 : x
  2. Step 2: Convert to fraction form
    306,849.12/459,745.56 = 239,515.44/x
  3. Step 3: Cross multiply
    306,849.12x = 459,745.56 × 239,515.44
  4. Step 4: Simplify right side
    306,849.12x = 110,116,160,091.45
  5. Step 5: Solve for x
    x = 110,116,160,091.45/306,849.12
  6. Step 6: Final answer
    x = 358,860.93

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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.