Home / 338,518.21-508,570.75-319,367.23

Finding the Fourth Proportional to 338,518.21, 508,570.75 and 319,367.23

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Solution

The fourth proportional to 338,518.21, 508,570.75 and 319,367.23 is: 479,799.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,518.21 : 508,570.75 = 319,367.23 : x
  2. Step 2: Convert to fraction form
    338,518.21/508,570.75 = 319,367.23/x
  3. Step 3: Cross multiply
    338,518.21x = 508,570.75 × 319,367.23
  4. Step 4: Simplify right side
    338,518.21x = 162,420,832,244.66
  5. Step 5: Solve for x
    x = 162,420,832,244.66/338,518.21
  6. Step 6: Final answer
    x = 479,799.39

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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.