Home / 264,215.20-396,322.80-86,749.60

Finding the Fourth Proportional to 264,215.20, 396,322.80 and 86,749.60

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Solution

The fourth proportional to 264,215.20, 396,322.80 and 86,749.60 is: 130,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,215.20 : 396,322.80 = 86,749.60 : x
  2. Step 2: Convert to fraction form
    264,215.20/396,322.80 = 86,749.60/x
  3. Step 3: Cross multiply
    264,215.20x = 396,322.80 × 86,749.60
  4. Step 4: Simplify right side
    264,215.20x = 34,380,844,370.88
  5. Step 5: Solve for x
    x = 34,380,844,370.88/264,215.20
  6. Step 6: Final answer
    x = 130,124.40

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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.