Finding the Fourth Proportional to 368.82, 553.05 and 339.99
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Solution
The fourth proportional to 368.82, 553.05 and 339.99 is: 509.82
Step by Step Solution
- Step 1: Write the proportion equation
368.82 : 553.05 = 339.99 : x - Step 2: Convert to fraction form
368.82/553.05 = 339.99/x - Step 3: Cross multiply
368.82x = 553.05 × 339.99 - Step 4: Simplify right side
368.82x = 188,031.47 - Step 5: Solve for x
x = 188,031.47/368.82 - Step 6: Final answer
x = 509.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.