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Finding the Fourth Proportional to 447,583.10, 617,678.60 and 243,647.60

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Solution

The fourth proportional to 447,583.10, 617,678.60 and 243,647.60 is: 336,241.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,583.10 : 617,678.60 = 243,647.60 : x
  2. Step 2: Convert to fraction form
    447,583.10/617,678.60 = 243,647.60/x
  3. Step 3: Cross multiply
    447,583.10x = 617,678.60 × 243,647.60
  4. Step 4: Simplify right side
    447,583.10x = 150,495,904,154.73
  5. Step 5: Solve for x
    x = 150,495,904,154.73/447,583.10
  6. Step 6: Final answer
    x = 336,241.26

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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.