Home / 326,112.02-489,171.80-98,409.61

Finding the Fourth Proportional to 326,112.02, 489,171.80 and 98,409.61

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Solution

The fourth proportional to 326,112.02, 489,171.80 and 98,409.61 is: 147,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,112.02 : 489,171.80 = 98,409.61 : x
  2. Step 2: Convert to fraction form
    326,112.02/489,171.80 = 98,409.61/x
  3. Step 3: Cross multiply
    326,112.02x = 489,171.80 × 98,409.61
  4. Step 4: Simplify right side
    326,112.02x = 48,139,206,180.41
  5. Step 5: Solve for x
    x = 48,139,206,180.41/326,112.02
  6. Step 6: Final answer
    x = 147,615.55

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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.