Home / 326,534.14-489,708.46-126,811.90

Finding the Fourth Proportional to 326,534.14, 489,708.46 and 126,811.90

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Solution

The fourth proportional to 326,534.14, 489,708.46 and 126,811.90 is: 190,181.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,534.14 : 489,708.46 = 126,811.90 : x
  2. Step 2: Convert to fraction form
    326,534.14/489,708.46 = 126,811.90/x
  3. Step 3: Cross multiply
    326,534.14x = 489,708.46 × 126,811.90
  4. Step 4: Simplify right side
    326,534.14x = 62,100,860,258.67
  5. Step 5: Solve for x
    x = 62,100,860,258.67/326,534.14
  6. Step 6: Final answer
    x = 190,181.83

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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.