Finding the Fourth Proportional to 212,084.25, 292,681.86 and 115,294.62
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Solution
The fourth proportional to 212,084.25, 292,681.86 and 115,294.62 is: 159,109.62
Step by Step Solution
- Step 1: Write the proportion equation
212,084.25 : 292,681.86 = 115,294.62 : x - Step 2: Convert to fraction form
212,084.25/292,681.86 = 115,294.62/x - Step 3: Cross multiply
212,084.25x = 292,681.86 × 115,294.62 - Step 4: Simplify right side
212,084.25x = 33,744,643,829.59 - Step 5: Solve for x
x = 33,744,643,829.59/212,084.25 - Step 6: Final answer
x = 159,109.62
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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.