Finding the Fourth Proportional to 209,730.72, 289,176.84 and 171,348.06
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Solution
The fourth proportional to 209,730.72, 289,176.84 and 171,348.06 is: 236,254.81
Step by Step Solution
- Step 1: Write the proportion equation
209,730.72 : 289,176.84 = 171,348.06 : x - Step 2: Convert to fraction form
209,730.72/289,176.84 = 171,348.06/x - Step 3: Cross multiply
209,730.72x = 289,176.84 × 171,348.06 - Step 4: Simplify right side
209,730.72x = 49,549,890,530.93 - Step 5: Solve for x
x = 49,549,890,530.93/209,730.72 - Step 6: Final answer
x = 236,254.81
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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.