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Finding the Fourth Proportional to 308,660.80, 425,949.60 and 174,529.60

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Solution

The fourth proportional to 308,660.80, 425,949.60 and 174,529.60 is: 240,849.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,660.80 : 425,949.60 = 174,529.60 : x
  2. Step 2: Convert to fraction form
    308,660.80/425,949.60 = 174,529.60/x
  3. Step 3: Cross multiply
    308,660.80x = 425,949.60 × 174,529.60
  4. Step 4: Simplify right side
    308,660.80x = 74,340,813,308.16
  5. Step 5: Solve for x
    x = 74,340,813,308.16/308,660.80
  6. Step 6: Final answer
    x = 240,849.55

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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.