Finding the Fourth Proportional to 472.68, 652.36 and 325.40
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Solution
The fourth proportional to 472.68, 652.36 and 325.40 is: 449.09
Step by Step Solution
- Step 1: Write the proportion equation
472.68 : 652.36 = 325.40 : x - Step 2: Convert to fraction form
472.68/652.36 = 325.40/x - Step 3: Cross multiply
472.68x = 652.36 × 325.40 - Step 4: Simplify right side
472.68x = 212,277.94 - Step 5: Solve for x
x = 212,277.94/472.68 - Step 6: Final answer
x = 449.09
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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.