Home / 300,729.45-415,006.63-164,768.55

Finding the Fourth Proportional to 300,729.45, 415,006.63 and 164,768.55

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Solution

The fourth proportional to 300,729.45, 415,006.63 and 164,768.55 is: 227,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,729.45 : 415,006.63 = 164,768.55 : x
  2. Step 2: Convert to fraction form
    300,729.45/415,006.63 = 164,768.55/x
  3. Step 3: Cross multiply
    300,729.45x = 415,006.63 × 164,768.55
  4. Step 4: Simplify right side
    300,729.45x = 68,380,038,590.45
  5. Step 5: Solve for x
    x = 68,380,038,590.45/300,729.45
  6. Step 6: Final answer
    x = 227,380.59

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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.