Home / 328,625.23-490,176.78-298,353.40

Finding the Fourth Proportional to 328,625.23, 490,176.78 and 298,353.40

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Solution

The fourth proportional to 328,625.23, 490,176.78 and 298,353.40 is: 445,023.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,625.23 : 490,176.78 = 298,353.40 : x
  2. Step 2: Convert to fraction form
    328,625.23/490,176.78 = 298,353.40/x
  3. Step 3: Cross multiply
    328,625.23x = 490,176.78 × 298,353.40
  4. Step 4: Simplify right side
    328,625.23x = 146,245,907,422.29
  5. Step 5: Solve for x
    x = 146,245,907,422.29/328,625.23
  6. Step 6: Final answer
    x = 445,023.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.