Home / 326,631.42-489,091.77-213,957.18

Finding the Fourth Proportional to 326,631.42, 489,091.77 and 213,957.18

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Solution

The fourth proportional to 326,631.42, 489,091.77 and 213,957.18 is: 320,375.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,631.42 : 489,091.77 = 213,957.18 : x
  2. Step 2: Convert to fraction form
    326,631.42/489,091.77 = 213,957.18/x
  3. Step 3: Cross multiply
    326,631.42x = 489,091.77 × 213,957.18
  4. Step 4: Simplify right side
    326,631.42x = 104,644,695,870.41
  5. Step 5: Solve for x
    x = 104,644,695,870.41/326,631.42
  6. Step 6: Final answer
    x = 320,375.47

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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.