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Finding the Fourth Proportional to 326,490.58, 489,841.71 and 160,161.94

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Solution

The fourth proportional to 326,490.58, 489,841.71 and 160,161.94 is: 240,294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,490.58 : 489,841.71 = 160,161.94 : x
  2. Step 2: Convert to fraction form
    326,490.58/489,841.71 = 160,161.94/x
  3. Step 3: Cross multiply
    326,490.58x = 489,841.71 × 160,161.94
  4. Step 4: Simplify right side
    326,490.58x = 78,453,998,566.52
  5. Step 5: Solve for x
    x = 78,453,998,566.52/326,490.58
  6. Step 6: Final answer
    x = 240,294.83

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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.