Home / 326,205.30-489,190.56-112,915.26

Finding the Fourth Proportional to 326,205.30, 489,190.56 and 112,915.26

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Solution

The fourth proportional to 326,205.30, 489,190.56 and 112,915.26 is: 169,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,205.30 : 489,190.56 = 112,915.26 : x
  2. Step 2: Convert to fraction form
    326,205.30/489,190.56 = 112,915.26/x
  3. Step 3: Cross multiply
    326,205.30x = 489,190.56 × 112,915.26
  4. Step 4: Simplify right side
    326,205.30x = 55,237,079,271.95
  5. Step 5: Solve for x
    x = 55,237,079,271.95/326,205.30
  6. Step 6: Final answer
    x = 169,332.26

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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.