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Finding the Fourth Proportional to 300,725.51, 415,018.62 and 164,759.72

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Solution

The fourth proportional to 300,725.51, 415,018.62 and 164,759.72 is: 227,377.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,725.51 : 415,018.62 = 164,759.72 : x
  2. Step 2: Convert to fraction form
    300,725.51/415,018.62 = 164,759.72/x
  3. Step 3: Cross multiply
    300,725.51x = 415,018.62 × 164,759.72
  4. Step 4: Simplify right side
    300,725.51x = 68,378,349,550.89
  5. Step 5: Solve for x
    x = 68,378,349,550.89/300,725.51
  6. Step 6: Final answer
    x = 227,377.95

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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.