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Finding the Fourth Proportional to 347,645.64, 479,757.78 and 226,864.20

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Solution

The fourth proportional to 347,645.64, 479,757.78 and 226,864.20 is: 313,077.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,645.64 : 479,757.78 = 226,864.20 : x
  2. Step 2: Convert to fraction form
    347,645.64/479,757.78 = 226,864.20/x
  3. Step 3: Cross multiply
    347,645.64x = 479,757.78 × 226,864.20
  4. Step 4: Simplify right side
    347,645.64x = 108,839,864,953.48
  5. Step 5: Solve for x
    x = 108,839,864,953.48/347,645.64
  6. Step 6: Final answer
    x = 313,077.03

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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.