Home / 319,869.17-479,804.37-83,211.47

Finding the Fourth Proportional to 319,869.17, 479,804.37 and 83,211.47

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Solution

The fourth proportional to 319,869.17, 479,804.37 and 83,211.47 is: 124,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,869.17 : 479,804.37 = 83,211.47 : x
  2. Step 2: Convert to fraction form
    319,869.17/479,804.37 = 83,211.47/x
  3. Step 3: Cross multiply
    319,869.17x = 479,804.37 × 83,211.47
  4. Step 4: Simplify right side
    319,869.17x = 39,925,226,940.12
  5. Step 5: Solve for x
    x = 39,925,226,940.12/319,869.17
  6. Step 6: Final answer
    x = 124,817.36

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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.