Finding the Fourth Proportional to 353,279.48, 487,521.59 and 192,130.99
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Solution
The fourth proportional to 353,279.48, 487,521.59 and 192,130.99 is: 265,138.54
Step by Step Solution
- Step 1: Write the proportion equation
353,279.48 : 487,521.59 = 192,130.99 : x - Step 2: Convert to fraction form
353,279.48/487,521.59 = 192,130.99/x - Step 3: Cross multiply
353,279.48x = 487,521.59 × 192,130.99 - Step 4: Simplify right side
353,279.48x = 93,668,003,553.62 - Step 5: Solve for x
x = 93,668,003,553.62/353,279.48 - Step 6: Final answer
x = 265,138.54
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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.