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Finding the Fourth Proportional to 300,787.80, 415,087.08 and 179,934.16

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Solution

The fourth proportional to 300,787.80, 415,087.08 and 179,934.16 is: 248,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,787.80 : 415,087.08 = 179,934.16 : x
  2. Step 2: Convert to fraction form
    300,787.80/415,087.08 = 179,934.16/x
  3. Step 3: Cross multiply
    300,787.80x = 415,087.08 × 179,934.16
  4. Step 4: Simplify right side
    300,787.80x = 74,688,345,066.65
  5. Step 5: Solve for x
    x = 74,688,345,066.65/300,787.80
  6. Step 6: Final answer
    x = 248,309.09

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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.