Home / 248,918.40-373,377.60-71,431.20

Finding the Fourth Proportional to 248,918.40, 373,377.60 and 71,431.20

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Solution

The fourth proportional to 248,918.40, 373,377.60 and 71,431.20 is: 107,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,918.40 : 373,377.60 = 71,431.20 : x
  2. Step 2: Convert to fraction form
    248,918.40/373,377.60 = 71,431.20/x
  3. Step 3: Cross multiply
    248,918.40x = 373,377.60 × 71,431.20
  4. Step 4: Simplify right side
    248,918.40x = 26,670,810,021.12
  5. Step 5: Solve for x
    x = 26,670,810,021.12/248,918.40
  6. Step 6: Final answer
    x = 107,146.80

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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.