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Finding the Fourth Proportional to 483,175.05, 666,590.34 and 279,188.38

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Solution

The fourth proportional to 483,175.05, 666,590.34 and 279,188.38 is: 385,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,175.05 : 666,590.34 = 279,188.38 : x
  2. Step 2: Convert to fraction form
    483,175.05/666,590.34 = 279,188.38/x
  3. Step 3: Cross multiply
    483,175.05x = 666,590.34 × 279,188.38
  4. Step 4: Simplify right side
    483,175.05x = 186,104,277,148.25
  5. Step 5: Solve for x
    x = 186,104,277,148.25/483,175.05
  6. Step 6: Final answer
    x = 385,169.47

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1.5x scale

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.