Finding the Fourth Proportional to 212,988.52, 293,914.26 and 122,280.63
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Solution
The fourth proportional to 212,988.52, 293,914.26 and 122,280.63 is: 168,741.59
Step by Step Solution
- Step 1: Write the proportion equation
212,988.52 : 293,914.26 = 122,280.63 : x - Step 2: Convert to fraction form
212,988.52/293,914.26 = 122,280.63/x - Step 3: Cross multiply
212,988.52x = 293,914.26 × 122,280.63 - Step 4: Simplify right side
212,988.52x = 35,940,020,878.78 - Step 5: Solve for x
x = 35,940,020,878.78/212,988.52 - Step 6: Final answer
x = 168,741.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.