Finding the Fourth Proportional to 236,015.67, 353,946.95 and 78,201.75
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Solution
The fourth proportional to 236,015.67, 353,946.95 and 78,201.75 is: 117,277.26
Step by Step Solution
- Step 1: Write the proportion equation
236,015.67 : 353,946.95 = 78,201.75 : x - Step 2: Convert to fraction form
236,015.67/353,946.95 = 78,201.75/x - Step 3: Cross multiply
236,015.67x = 353,946.95 × 78,201.75 - Step 4: Simplify right side
236,015.67x = 27,679,270,506.15 - Step 5: Solve for x
x = 27,679,270,506.15/236,015.67 - Step 6: Final answer
x = 117,277.26
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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.