Finding the Fourth Proportional to 377,474.20, 520,935.95 and 216,356.09
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Solution
The fourth proportional to 377,474.20, 520,935.95 and 216,356.09 is: 298,583.75
Step by Step Solution
- Step 1: Write the proportion equation
377,474.20 : 520,935.95 = 216,356.09 : x - Step 2: Convert to fraction form
377,474.20/520,935.95 = 216,356.09/x - Step 3: Cross multiply
377,474.20x = 520,935.95 × 216,356.09 - Step 4: Simplify right side
377,474.20x = 112,707,661,595.98 - Step 5: Solve for x
x = 112,707,661,595.98/377,474.20 - Step 6: Final answer
x = 298,583.75
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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.