Finding the Fourth Proportional to 153,279.23, 229,916.19 and 68,979.74
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Solution
The fourth proportional to 153,279.23, 229,916.19 and 68,979.74 is: 103,468.42
Step by Step Solution
- Step 1: Write the proportion equation
153,279.23 : 229,916.19 = 68,979.74 : x - Step 2: Convert to fraction form
153,279.23/229,916.19 = 68,979.74/x - Step 3: Cross multiply
153,279.23x = 229,916.19 × 68,979.74 - Step 4: Simplify right side
153,279.23x = 15,859,559,007.99 - Step 5: Solve for x
x = 15,859,559,007.99/153,279.23 - Step 6: Final answer
x = 103,468.42
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.