Home / 264,317.40-396,519.30-86,776.20

Finding the Fourth Proportional to 264,317.40, 396,519.30 and 86,776.20

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Solution

The fourth proportional to 264,317.40, 396,519.30 and 86,776.20 is: 130,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,317.40 : 396,519.30 = 86,776.20 : x
  2. Step 2: Convert to fraction form
    264,317.40/396,519.30 = 86,776.20/x
  3. Step 3: Cross multiply
    264,317.40x = 396,519.30 × 86,776.20
  4. Step 4: Simplify right side
    264,317.40x = 34,408,438,080.66
  5. Step 5: Solve for x
    x = 34,408,438,080.66/264,317.40
  6. Step 6: Final answer
    x = 130,178.48

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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.