Finding the Fourth Proportional to 217,389.19, 299,940.27 and 125,485.98
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Solution
The fourth proportional to 217,389.19, 299,940.27 and 125,485.98 is: 173,137.86
Step by Step Solution
- Step 1: Write the proportion equation
217,389.19 : 299,940.27 = 125,485.98 : x - Step 2: Convert to fraction form
217,389.19/299,940.27 = 125,485.98/x - Step 3: Cross multiply
217,389.19x = 299,940.27 × 125,485.98 - Step 4: Simplify right side
217,389.19x = 37,638,298,722.41 - Step 5: Solve for x
x = 37,638,298,722.41/217,389.19 - Step 6: Final answer
x = 173,137.86
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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.