Finding the Fourth Proportional to 385,569.18, 532,085.36 and 215,803.31
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Solution
The fourth proportional to 385,569.18, 532,085.36 and 215,803.31 is: 297,808.50
Step by Step Solution
- Step 1: Write the proportion equation
385,569.18 : 532,085.36 = 215,803.31 : x - Step 2: Convert to fraction form
385,569.18/532,085.36 = 215,803.31/x - Step 3: Cross multiply
385,569.18x = 532,085.36 × 215,803.31 - Step 4: Simplify right side
385,569.18x = 114,825,778,151.10 - Step 5: Solve for x
x = 114,825,778,151.10/385,569.18 - Step 6: Final answer
x = 297,808.50
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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.