Home / 319,918.24-480,172.56-162,257.41

Finding the Fourth Proportional to 319,918.24, 480,172.56 and 162,257.41

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Solution

The fourth proportional to 319,918.24, 480,172.56 and 162,257.41 is: 243,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,918.24 : 480,172.56 = 162,257.41 : x
  2. Step 2: Convert to fraction form
    319,918.24/480,172.56 = 162,257.41/x
  3. Step 3: Cross multiply
    319,918.24x = 480,172.56 × 162,257.41
  4. Step 4: Simplify right side
    319,918.24x = 77,911,555,938.67
  5. Step 5: Solve for x
    x = 77,911,555,938.67/319,918.24
  6. Step 6: Final answer
    x = 243,535.84

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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.