Finding the Fourth Proportional to 213,137.19, 294,129.35 and 117,643.91
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Solution
The fourth proportional to 213,137.19, 294,129.35 and 117,643.91 is: 162,348.61
Step by Step Solution
- Step 1: Write the proportion equation
213,137.19 : 294,129.35 = 117,643.91 : x - Step 2: Convert to fraction form
213,137.19/294,129.35 = 117,643.91/x - Step 3: Cross multiply
213,137.19x = 294,129.35 × 117,643.91 - Step 4: Simplify right side
213,137.19x = 34,602,527,395.59 - Step 5: Solve for x
x = 34,602,527,395.59/213,137.19 - Step 6: Final answer
x = 162,348.61
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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.