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Finding the Fourth Proportional to 447,762.40, 671,221.32 and 222,910

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Solution

The fourth proportional to 447,762.40, 671,221.32 and 222,910 is: 334,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,762.40 : 671,221.32 = 222,910 : x
  2. Step 2: Convert to fraction form
    447,762.40/671,221.32 = 222,910/x
  3. Step 3: Cross multiply
    447,762.40x = 671,221.32 × 222,910
  4. Step 4: Simplify right side
    447,762.40x = 149,621,944,441.20
  5. Step 5: Solve for x
    x = 149,621,944,441.20/447,762.40
  6. Step 6: Final answer
    x = 334,154.78

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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.