Finding the Fourth Proportional to 212,070.63, 292,658.07 and 121,427.98
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Solution
The fourth proportional to 212,070.63, 292,658.07 and 121,427.98 is: 167,570.96
Step by Step Solution
- Step 1: Write the proportion equation
212,070.63 : 292,658.07 = 121,427.98 : x - Step 2: Convert to fraction form
212,070.63/292,658.07 = 121,427.98/x - Step 3: Cross multiply
212,070.63x = 292,658.07 × 121,427.98 - Step 4: Simplify right side
212,070.63x = 35,536,878,270.80 - Step 5: Solve for x
x = 35,536,878,270.80/212,070.63 - Step 6: Final answer
x = 167,570.96
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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.