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Finding the Fourth Proportional to 326,598.80, 489,929.00 and 126,934.47

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Solution

The fourth proportional to 326,598.80, 489,929.00 and 126,934.47 is: 190,413.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,598.80 : 489,929.00 = 126,934.47 : x
  2. Step 2: Convert to fraction form
    326,598.80/489,929.00 = 126,934.47/x
  3. Step 3: Cross multiply
    326,598.80x = 489,929.00 × 126,934.47
  4. Step 4: Simplify right side
    326,598.80x = 62,188,877,317.96
  5. Step 5: Solve for x
    x = 62,188,877,317.96/326,598.80
  6. Step 6: Final answer
    x = 190,413.68

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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.