Finding the Fourth Proportional to 326,330.12, 489,495.21 and 115,976.36
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Solution
The fourth proportional to 326,330.12, 489,495.21 and 115,976.36 is: 173,964.55
Step by Step Solution
- Step 1: Write the proportion equation
326,330.12 : 489,495.21 = 115,976.36 : x - Step 2: Convert to fraction form
326,330.12/489,495.21 = 115,976.36/x - Step 3: Cross multiply
326,330.12x = 489,495.21 × 115,976.36 - Step 4: Simplify right side
326,330.12x = 56,769,872,693.24 - Step 5: Solve for x
x = 56,769,872,693.24/326,330.12 - Step 6: Final answer
x = 173,964.55
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1.5x scale
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.