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Finding the Fourth Proportional to 418,369.87, 577,354.94 and 227,383.30

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Solution

The fourth proportional to 418,369.87, 577,354.94 and 227,383.30 is: 313,791.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,369.87 : 577,354.94 = 227,383.30 : x
  2. Step 2: Convert to fraction form
    418,369.87/577,354.94 = 227,383.30/x
  3. Step 3: Cross multiply
    418,369.87x = 577,354.94 × 227,383.30
  4. Step 4: Simplify right side
    418,369.87x = 131,280,871,528.50
  5. Step 5: Solve for x
    x = 131,280,871,528.50/418,369.87
  6. Step 6: Final answer
    x = 313,791.41

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1.5x scale

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.