Home / 382,678.06-528,081.24-212,908.54

Finding the Fourth Proportional to 382,678.06, 528,081.24 and 212,908.54

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Solution

The fourth proportional to 382,678.06, 528,081.24 and 212,908.54 is: 293,805.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,678.06 : 528,081.24 = 212,908.54 : x
  2. Step 2: Convert to fraction form
    382,678.06/528,081.24 = 212,908.54/x
  3. Step 3: Cross multiply
    382,678.06x = 528,081.24 × 212,908.54
  4. Step 4: Simplify right side
    382,678.06x = 112,433,005,809.79
  5. Step 5: Solve for x
    x = 112,433,005,809.79/382,678.06
  6. Step 6: Final answer
    x = 293,805.73

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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.