Finding the Fourth Proportional to 212,652.61, 293,503.11 and 122,069.82
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Solution
The fourth proportional to 212,652.61, 293,503.11 and 122,069.82 is: 168,480.75
Step by Step Solution
- Step 1: Write the proportion equation
212,652.61 : 293,503.11 = 122,069.82 : x - Step 2: Convert to fraction form
212,652.61/293,503.11 = 122,069.82/x - Step 3: Cross multiply
212,652.61x = 293,503.11 × 122,069.82 - Step 4: Simplify right side
212,652.61x = 35,827,871,807.14 - Step 5: Solve for x
x = 35,827,871,807.14/212,652.61 - Step 6: Final answer
x = 168,480.75
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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.