Finding the Fourth Proportional to 311,305.84, 464,379.23 and 302,128.63
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Solution
The fourth proportional to 311,305.84, 464,379.23 and 302,128.63 is: 450,689.46
Step by Step Solution
- Step 1: Write the proportion equation
311,305.84 : 464,379.23 = 302,128.63 : x - Step 2: Convert to fraction form
311,305.84/464,379.23 = 302,128.63/x - Step 3: Cross multiply
311,305.84x = 464,379.23 × 302,128.63 - Step 4: Simplify right side
311,305.84x = 140,302,260,154.73 - Step 5: Solve for x
x = 140,302,260,154.73/311,305.84 - Step 6: Final answer
x = 450,689.46
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.