Finding the Fourth Proportional to 387.84, 534.84 and 336
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Solution
The fourth proportional to 387.84, 534.84 and 336 is: 463.35
Step by Step Solution
- Step 1: Write the proportion equation
387.84 : 534.84 = 336 : x - Step 2: Convert to fraction form
387.84/534.84 = 336/x - Step 3: Cross multiply
387.84x = 534.84 × 336 - Step 4: Simplify right side
387.84x = 179,706.24 - Step 5: Solve for x
x = 179,706.24/387.84 - Step 6: Final answer
x = 463.35
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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.