Home / 326,623.42-489,079.77-213,949.18

Finding the Fourth Proportional to 326,623.42, 489,079.77 and 213,949.18

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Solution

The fourth proportional to 326,623.42, 489,079.77 and 213,949.18 is: 320,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,623.42 : 489,079.77 = 213,949.18 : x
  2. Step 2: Convert to fraction form
    326,623.42/489,079.77 = 213,949.18/x
  3. Step 3: Cross multiply
    326,623.42x = 489,079.77 × 213,949.18
  4. Step 4: Simplify right side
    326,623.42x = 104,638,215,746.09
  5. Step 5: Solve for x
    x = 104,638,215,746.09/326,623.42
  6. Step 6: Final answer
    x = 320,363.48

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1.5x scale

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.