Home / 264,211.20-396,316.80-86,745.60

Finding the Fourth Proportional to 264,211.20, 396,316.80 and 86,745.60

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Solution

The fourth proportional to 264,211.20, 396,316.80 and 86,745.60 is: 130,118.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,211.20 : 396,316.80 = 86,745.60 : x
  2. Step 2: Convert to fraction form
    264,211.20/396,316.80 = 86,745.60/x
  3. Step 3: Cross multiply
    264,211.20x = 396,316.80 × 86,745.60
  4. Step 4: Simplify right side
    264,211.20x = 34,378,738,606.08
  5. Step 5: Solve for x
    x = 34,378,738,606.08/264,211.20
  6. Step 6: Final answer
    x = 130,118.40

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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.