Finding the Fourth Proportional to 377,873.84, 521,449.08 and 216,613.28
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Solution
The fourth proportional to 377,873.84, 521,449.08 and 216,613.28 is: 298,916.68
Step by Step Solution
- Step 1: Write the proportion equation
377,873.84 : 521,449.08 = 216,613.28 : x - Step 2: Convert to fraction form
377,873.84/521,449.08 = 216,613.28/x - Step 3: Cross multiply
377,873.84x = 521,449.08 × 216,613.28 - Step 4: Simplify right side
377,873.84x = 112,952,795,571.78 - Step 5: Solve for x
x = 112,952,795,571.78/377,873.84 - Step 6: Final answer
x = 298,916.68
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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.