Home / 319,256.75-479,196.77-263,663.21

Finding the Fourth Proportional to 319,256.75, 479,196.77 and 263,663.21

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Solution

The fourth proportional to 319,256.75, 479,196.77 and 263,663.21 is: 395,752.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,256.75 : 479,196.77 = 263,663.21 : x
  2. Step 2: Convert to fraction form
    319,256.75/479,196.77 = 263,663.21/x
  3. Step 3: Cross multiply
    319,256.75x = 479,196.77 × 263,663.21
  4. Step 4: Simplify right side
    319,256.75x = 126,346,558,479.51
  5. Step 5: Solve for x
    x = 126,346,558,479.51/319,256.75
  6. Step 6: Final answer
    x = 395,752.19

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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.