Finding the Fourth Proportional to 463.08, 639.09 and 263.99
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Solution
The fourth proportional to 463.08, 639.09 and 263.99 is: 364.32
Step by Step Solution
- Step 1: Write the proportion equation
463.08 : 639.09 = 263.99 : x - Step 2: Convert to fraction form
463.08/639.09 = 263.99/x - Step 3: Cross multiply
463.08x = 639.09 × 263.99 - Step 4: Simplify right side
463.08x = 168,710.17 - Step 5: Solve for x
x = 168,710.17/463.08 - Step 6: Final answer
x = 364.32
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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.