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Finding the Fourth Proportional to 347,646.64, 479,759.16 and 226,865.20

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Solution

The fourth proportional to 347,646.64, 479,759.16 and 226,865.20 is: 313,078.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,646.64 : 479,759.16 = 226,865.20 : x
  2. Step 2: Convert to fraction form
    347,646.64/479,759.16 = 226,865.20/x
  3. Step 3: Cross multiply
    347,646.64x = 479,759.16 × 226,865.20
  4. Step 4: Simplify right side
    347,646.64x = 108,840,657,785.23
  5. Step 5: Solve for x
    x = 108,840,657,785.23/347,646.64
  6. Step 6: Final answer
    x = 313,078.41

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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.