Finding the Fourth Proportional to 212,068.89, 292,657.14 and 115,272.70
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Solution
The fourth proportional to 212,068.89, 292,657.14 and 115,272.70 is: 159,077.45
Step by Step Solution
- Step 1: Write the proportion equation
212,068.89 : 292,657.14 = 115,272.70 : x - Step 2: Convert to fraction form
212,068.89/292,657.14 = 115,272.70/x - Step 3: Cross multiply
212,068.89x = 292,657.14 × 115,272.70 - Step 4: Simplify right side
212,068.89x = 33,735,377,970.44 - Step 5: Solve for x
x = 33,735,377,970.44/212,068.89 - Step 6: Final answer
x = 159,077.45
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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.