Finding the Fourth Proportional to 212,040.29, 292,683.80 and 135,764.84
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Solution
The fourth proportional to 212,040.29, 292,683.80 and 135,764.84 is: 187,399.15
Step by Step Solution
- Step 1: Write the proportion equation
212,040.29 : 292,683.80 = 135,764.84 : x - Step 2: Convert to fraction form
212,040.29/292,683.80 = 135,764.84/x - Step 3: Cross multiply
212,040.29x = 292,683.80 × 135,764.84 - Step 4: Simplify right side
212,040.29x = 39,736,169,277.59 - Step 5: Solve for x
x = 39,736,169,277.59/212,040.29 - Step 6: Final answer
x = 187,399.15
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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.