Home / 668,150.72-1,002,265.44-218,918.72

Finding the Fourth Proportional to 668,150.72, 1,002,265.44 and 218,918.72

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Solution

The fourth proportional to 668,150.72, 1,002,265.44 and 218,918.72 is: 328,390.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,150.72 : 1,002,265.44 = 218,918.72 : x
  2. Step 2: Convert to fraction form
    668,150.72/1,002,265.44 = 218,918.72/x
  3. Step 3: Cross multiply
    668,150.72x = 1,002,265.44 × 218,918.72
  4. Step 4: Simplify right side
    668,150.72x = 219,414,667,225.04
  5. Step 5: Solve for x
    x = 219,414,667,225.04/668,150.72
  6. Step 6: Final answer
    x = 328,390.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.