Finding the Fourth Proportional to 679.13, 937.19 and 368.63
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Solution
The fourth proportional to 679.13, 937.19 and 368.63 is: 508.70
Step by Step Solution
- Step 1: Write the proportion equation
679.13 : 937.19 = 368.63 : x - Step 2: Convert to fraction form
679.13/937.19 = 368.63/x - Step 3: Cross multiply
679.13x = 937.19 × 368.63 - Step 4: Simplify right side
679.13x = 345,472.59 - Step 5: Solve for x
x = 345,472.59/679.13 - Step 6: Final answer
x = 508.70
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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.