Finding the Fourth Proportional to 377,352.79, 520,738.39 and 216,302.78
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Solution
The fourth proportional to 377,352.79, 520,738.39 and 216,302.78 is: 298,492.99
Step by Step Solution
- Step 1: Write the proportion equation
377,352.79 : 520,738.39 = 216,302.78 : x - Step 2: Convert to fraction form
377,352.79/520,738.39 = 216,302.78/x - Step 3: Cross multiply
377,352.79x = 520,738.39 × 216,302.78 - Step 4: Simplify right side
377,352.79x = 112,637,161,409.72 - Step 5: Solve for x
x = 112,637,161,409.72/377,352.79 - Step 6: Final answer
x = 298,492.99
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1.5x scale
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.