Finding the Fourth Proportional to 326,465.70, 489,115.35 and 266,979.30
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Solution
The fourth proportional to 326,465.70, 489,115.35 and 266,979.30 is: 399,992.02
Step by Step Solution
- Step 1: Write the proportion equation
326,465.70 : 489,115.35 = 266,979.30 : x - Step 2: Convert to fraction form
326,465.70/489,115.35 = 266,979.30/x - Step 3: Cross multiply
326,465.70x = 489,115.35 × 266,979.30 - Step 4: Simplify right side
326,465.70x = 130,583,673,762.26 - Step 5: Solve for x
x = 130,583,673,762.26/326,465.70 - Step 6: Final answer
x = 399,992.02
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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.