Home / 319,207.10-477,965.92-192,678.22

Finding the Fourth Proportional to 319,207.10, 477,965.92 and 192,678.22

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Solution

The fourth proportional to 319,207.10, 477,965.92 and 192,678.22 is: 288,507.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,207.10 : 477,965.92 = 192,678.22 : x
  2. Step 2: Convert to fraction form
    319,207.10/477,965.92 = 192,678.22/x
  3. Step 3: Cross multiply
    319,207.10x = 477,965.92 × 192,678.22
  4. Step 4: Simplify right side
    319,207.10x = 92,093,621,009.65
  5. Step 5: Solve for x
    x = 92,093,621,009.65/319,207.10
  6. Step 6: Final answer
    x = 288,507.43

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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.