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Finding the Fourth Proportional to 247,017.69, 371,022.53 and 147,372.57

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Solution

The fourth proportional to 247,017.69, 371,022.53 and 147,372.57 is: 221,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,017.69 : 371,022.53 = 147,372.57 : x
  2. Step 2: Convert to fraction form
    247,017.69/371,022.53 = 147,372.57/x
  3. Step 3: Cross multiply
    247,017.69x = 371,022.53 × 147,372.57
  4. Step 4: Simplify right side
    247,017.69x = 54,678,543,037.14
  5. Step 5: Solve for x
    x = 54,678,543,037.14/247,017.69
  6. Step 6: Final answer
    x = 221,354.77

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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.