Finding the Fourth Proportional to 212,465.08, 293,218.98 and 121,829.50
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Solution
The fourth proportional to 212,465.08, 293,218.98 and 121,829.50 is: 168,134.56
Step by Step Solution
- Step 1: Write the proportion equation
212,465.08 : 293,218.98 = 121,829.50 : x - Step 2: Convert to fraction form
212,465.08/293,218.98 = 121,829.50/x - Step 3: Cross multiply
212,465.08x = 293,218.98 × 121,829.50 - Step 4: Simplify right side
212,465.08x = 35,722,721,723.91 - Step 5: Solve for x
x = 35,722,721,723.91/212,465.08 - Step 6: Final answer
x = 168,134.56
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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.