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Finding the Fourth Proportional to 447,322.34, 617,309.65 and 243,374.42

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Solution

The fourth proportional to 447,322.34, 617,309.65 and 243,374.42 is: 335,859.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,322.34 : 617,309.65 = 243,374.42 : x
  2. Step 2: Convert to fraction form
    447,322.34/617,309.65 = 243,374.42/x
  3. Step 3: Cross multiply
    447,322.34x = 617,309.65 × 243,374.42
  4. Step 4: Simplify right side
    447,322.34x = 150,237,378,029.15
  5. Step 5: Solve for x
    x = 150,237,378,029.15/447,322.34
  6. Step 6: Final answer
    x = 335,859.32

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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.