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Finding the Fourth Proportional to 330,155.73, 454,594.75 and 257,850.69

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Solution

The fourth proportional to 330,155.73, 454,594.75 and 257,850.69 is: 355,037.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,155.73 : 454,594.75 = 257,850.69 : x
  2. Step 2: Convert to fraction form
    330,155.73/454,594.75 = 257,850.69/x
  3. Step 3: Cross multiply
    330,155.73x = 454,594.75 × 257,850.69
  4. Step 4: Simplify right side
    330,155.73x = 117,217,569,957.88
  5. Step 5: Solve for x
    x = 117,217,569,957.88/330,155.73
  6. Step 6: Final answer
    x = 355,037.21

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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.