Home / 382,723.32-528,222.94-221,676.42

Finding the Fourth Proportional to 382,723.32, 528,222.94 and 221,676.42

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Solution

The fourth proportional to 382,723.32, 528,222.94 and 221,676.42 is: 305,950.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,723.32 : 528,222.94 = 221,676.42 : x
  2. Step 2: Convert to fraction form
    382,723.32/528,222.94 = 221,676.42/x
  3. Step 3: Cross multiply
    382,723.32x = 528,222.94 × 221,676.42
  4. Step 4: Simplify right side
    382,723.32x = 117,094,570,301.08
  5. Step 5: Solve for x
    x = 117,094,570,301.08/382,723.32
  6. Step 6: Final answer
    x = 305,950.97

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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.