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Finding the Fourth Proportional to 347,684.64, 479,811.60 and 226,903.20

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Solution

The fourth proportional to 347,684.64, 479,811.60 and 226,903.20 is: 313,130.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,684.64 : 479,811.60 = 226,903.20 : x
  2. Step 2: Convert to fraction form
    347,684.64/479,811.60 = 226,903.20/x
  3. Step 3: Cross multiply
    347,684.64x = 479,811.60 × 226,903.20
  4. Step 4: Simplify right side
    347,684.64x = 108,870,787,437.12
  5. Step 5: Solve for x
    x = 108,870,787,437.12/347,684.64
  6. Step 6: Final answer
    x = 313,130.85

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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.