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Finding the Fourth Proportional to 300,782.25, 415,079.51 and 179,928.63

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Solution

The fourth proportional to 300,782.25, 415,079.51 and 179,928.63 is: 248,301.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,782.25 : 415,079.51 = 179,928.63 : x
  2. Step 2: Convert to fraction form
    300,782.25/415,079.51 = 179,928.63/x
  3. Step 3: Cross multiply
    300,782.25x = 415,079.51 × 179,928.63
  4. Step 4: Simplify right side
    300,782.25x = 74,684,686,675.73
  5. Step 5: Solve for x
    x = 74,684,686,675.73/300,782.25
  6. Step 6: Final answer
    x = 248,301.51

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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.