Finding the Fourth Proportional to 326,630.18, 489,089.88 and 213,955.94
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Solution
The fourth proportional to 326,630.18, 489,089.88 and 213,955.94 is: 320,373.60
Step by Step Solution
- Step 1: Write the proportion equation
326,630.18 : 489,089.88 = 213,955.94 : x - Step 2: Convert to fraction form
326,630.18/489,089.88 = 213,955.94/x - Step 3: Cross multiply
326,630.18x = 489,089.88 × 213,955.94 - Step 4: Simplify right side
326,630.18x = 104,643,685,019.89 - Step 5: Solve for x
x = 104,643,685,019.89/326,630.18 - Step 6: Final answer
x = 320,373.60
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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.