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Finding the Fourth Proportional to 329,367.58, 454,276.42 and 283,505.25

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Solution

The fourth proportional to 329,367.58, 454,276.42 and 283,505.25 is: 391,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,367.58 : 454,276.42 = 283,505.25 : x
  2. Step 2: Convert to fraction form
    329,367.58/454,276.42 = 283,505.25/x
  3. Step 3: Cross multiply
    329,367.58x = 454,276.42 × 283,505.25
  4. Step 4: Simplify right side
    329,367.58x = 128,789,750,021.21
  5. Step 5: Solve for x
    x = 128,789,750,021.21/329,367.58
  6. Step 6: Final answer
    x = 391,021.33

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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.