Finding the Fourth Proportional to 456.98, 630.99 and 299.70
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Solution
The fourth proportional to 456.98, 630.99 and 299.70 is: 413.83
Step by Step Solution
- Step 1: Write the proportion equation
456.98 : 630.99 = 299.70 : x - Step 2: Convert to fraction form
456.98/630.99 = 299.70/x - Step 3: Cross multiply
456.98x = 630.99 × 299.70 - Step 4: Simplify right side
456.98x = 189,107.70 - Step 5: Solve for x
x = 189,107.70/456.98 - Step 6: Final answer
x = 413.83
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.