Finding the Fourth Proportional to 808,218.20, 1,212,283.35 and 247,252.70
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Solution
The fourth proportional to 808,218.20, 1,212,283.35 and 247,252.70 is: 370,865.60
Step by Step Solution
- Step 1: Write the proportion equation
808,218.20 : 1,212,283.35 = 247,252.70 : x - Step 2: Convert to fraction form
808,218.20/1,212,283.35 = 247,252.70/x - Step 3: Cross multiply
808,218.20x = 1,212,283.35 × 247,252.70 - Step 4: Simplify right side
808,218.20x = 299,740,331,452.55 - Step 5: Solve for x
x = 299,740,331,452.55/808,218.20 - Step 6: Final answer
x = 370,865.60
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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.