Home / 668,151.72-1,002,266.94-218,919.72

Finding the Fourth Proportional to 668,151.72, 1,002,266.94 and 218,919.72

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Solution

The fourth proportional to 668,151.72, 1,002,266.94 and 218,919.72 is: 328,392.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,151.72 : 1,002,266.94 = 218,919.72 : x
  2. Step 2: Convert to fraction form
    668,151.72/1,002,266.94 = 218,919.72/x
  3. Step 3: Cross multiply
    668,151.72x = 1,002,266.94 × 218,919.72
  4. Step 4: Simplify right side
    668,151.72x = 219,415,997,870.06
  5. Step 5: Solve for x
    x = 219,415,997,870.06/668,151.72
  6. Step 6: Final answer
    x = 328,392.48

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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.