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Finding the Fourth Proportional to 326,808.64, 490,291.76 and 113,545.48

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Solution

The fourth proportional to 326,808.64, 490,291.76 and 113,545.48 is: 170,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,808.64 : 490,291.76 = 113,545.48 : x
  2. Step 2: Convert to fraction form
    326,808.64/490,291.76 = 113,545.48/x
  3. Step 3: Cross multiply
    326,808.64x = 490,291.76 × 113,545.48
  4. Step 4: Simplify right side
    326,808.64x = 55,670,413,229.24
  5. Step 5: Solve for x
    x = 55,670,413,229.24/326,808.64
  6. Step 6: Final answer
    x = 170,345.60

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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.