Finding the Fourth Proportional to 151,625.41, 209,244.60 and 83,644.79
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Solution
The fourth proportional to 151,625.41, 209,244.60 and 83,644.79 is: 115,430.65
Step by Step Solution
- Step 1: Write the proportion equation
151,625.41 : 209,244.60 = 83,644.79 : x - Step 2: Convert to fraction form
151,625.41/209,244.60 = 83,644.79/x - Step 3: Cross multiply
151,625.41x = 209,244.60 × 83,644.79 - Step 4: Simplify right side
151,625.41x = 17,502,219,579.41 - Step 5: Solve for x
x = 17,502,219,579.41/151,625.41 - Step 6: Final answer
x = 115,430.65
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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.