Home / 326,048.20-489,072.30-231,569.80

Finding the Fourth Proportional to 326,048.20, 489,072.30 and 231,569.80

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Solution

The fourth proportional to 326,048.20, 489,072.30 and 231,569.80 is: 347,354.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,048.20 : 489,072.30 = 231,569.80 : x
  2. Step 2: Convert to fraction form
    326,048.20/489,072.30 = 231,569.80/x
  3. Step 3: Cross multiply
    326,048.20x = 489,072.30 × 231,569.80
  4. Step 4: Simplify right side
    326,048.20x = 113,254,374,696.54
  5. Step 5: Solve for x
    x = 113,254,374,696.54/326,048.20
  6. Step 6: Final answer
    x = 347,354.70

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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.