Home / 309,620.07-426,951.81-229,216.23

Finding the Fourth Proportional to 309,620.07, 426,951.81 and 229,216.23

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Solution

The fourth proportional to 309,620.07, 426,951.81 and 229,216.23 is: 316,078.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,620.07 : 426,951.81 = 229,216.23 : x
  2. Step 2: Convert to fraction form
    309,620.07/426,951.81 = 229,216.23/x
  3. Step 3: Cross multiply
    309,620.07x = 426,951.81 × 229,216.23
  4. Step 4: Simplify right side
    309,620.07x = 97,864,284,279.88
  5. Step 5: Solve for x
    x = 97,864,284,279.88/309,620.07
  6. Step 6: Final answer
    x = 316,078.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.