Home / 326,733.90-489,910.57-126,820.75

Finding the Fourth Proportional to 326,733.90, 489,910.57 and 126,820.75

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Solution

The fourth proportional to 326,733.90, 489,910.57 and 126,820.75 is: 190,157.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,733.90 : 489,910.57 = 126,820.75 : x
  2. Step 2: Convert to fraction form
    326,733.90/489,910.57 = 126,820.75/x
  3. Step 3: Cross multiply
    326,733.90x = 489,910.57 × 126,820.75
  4. Step 4: Simplify right side
    326,733.90x = 62,130,823,470.77
  5. Step 5: Solve for x
    x = 62,130,823,470.77/326,733.90
  6. Step 6: Final answer
    x = 190,157.26

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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.