Home / 326,057.20-489,110.10-115,667.80

Finding the Fourth Proportional to 326,057.20, 489,110.10 and 115,667.80

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Solution

The fourth proportional to 326,057.20, 489,110.10 and 115,667.80 is: 173,510.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,057.20 : 489,110.10 = 115,667.80 : x
  2. Step 2: Convert to fraction form
    326,057.20/489,110.10 = 115,667.80/x
  3. Step 3: Cross multiply
    326,057.20x = 489,110.10 × 115,667.80
  4. Step 4: Simplify right side
    326,057.20x = 56,574,289,224.78
  5. Step 5: Solve for x
    x = 56,574,289,224.78/326,057.20
  6. Step 6: Final answer
    x = 173,510.32

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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.