Home / 326,632.50-489,979.67-126,968.31

Finding the Fourth Proportional to 326,632.50, 489,979.67 and 126,968.31

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Solution

The fourth proportional to 326,632.50, 489,979.67 and 126,968.31 is: 190,464.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,632.50 : 489,979.67 = 126,968.31 : x
  2. Step 2: Convert to fraction form
    326,632.50/489,979.67 = 126,968.31/x
  3. Step 3: Cross multiply
    326,632.50x = 489,979.67 × 126,968.31
  4. Step 4: Simplify right side
    326,632.50x = 62,211,889,999.42
  5. Step 5: Solve for x
    x = 62,211,889,999.42/326,632.50
  6. Step 6: Final answer
    x = 190,464.48

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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.