Home / 226,428.60-339,632.10-76,654.20

Finding the Fourth Proportional to 226,428.60, 339,632.10 and 76,654.20

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Solution

The fourth proportional to 226,428.60, 339,632.10 and 76,654.20 is: 114,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,428.60 : 339,632.10 = 76,654.20 : x
  2. Step 2: Convert to fraction form
    226,428.60/339,632.10 = 76,654.20/x
  3. Step 3: Cross multiply
    226,428.60x = 339,632.10 × 76,654.20
  4. Step 4: Simplify right side
    226,428.60x = 26,034,226,919.82
  5. Step 5: Solve for x
    x = 26,034,226,919.82/226,428.60
  6. Step 6: Final answer
    x = 114,977.64

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1.5x scale

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.