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Finding the Fourth Proportional to 447,803.08, 617,976.34 and 243,860.04

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Solution

The fourth proportional to 447,803.08, 617,976.34 and 243,860.04 is: 336,531.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,803.08 : 617,976.34 = 243,860.04 : x
  2. Step 2: Convert to fraction form
    447,803.08/617,976.34 = 243,860.04/x
  3. Step 3: Cross multiply
    447,803.08x = 617,976.34 × 243,860.04
  4. Step 4: Simplify right side
    447,803.08x = 150,699,734,991.45
  5. Step 5: Solve for x
    x = 150,699,734,991.45/447,803.08
  6. Step 6: Final answer
    x = 336,531.26

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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.