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Finding the Fourth Proportional to 274,885.53, 411,975.94 and 239,198.55

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Solution

The fourth proportional to 274,885.53, 411,975.94 and 239,198.55 is: 358,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,885.53 : 411,975.94 = 239,198.55 : x
  2. Step 2: Convert to fraction form
    274,885.53/411,975.94 = 239,198.55/x
  3. Step 3: Cross multiply
    274,885.53x = 411,975.94 × 239,198.55
  4. Step 4: Simplify right side
    274,885.53x = 98,544,047,482.89
  5. Step 5: Solve for x
    x = 98,544,047,482.89/274,885.53
  6. Step 6: Final answer
    x = 358,491.21

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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.