Finding the Fourth Proportional to 474.39, 711.09 and 230.58
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Solution
The fourth proportional to 474.39, 711.09 and 230.58 is: 345.63
Step by Step Solution
- Step 1: Write the proportion equation
474.39 : 711.09 = 230.58 : x - Step 2: Convert to fraction form
474.39/711.09 = 230.58/x - Step 3: Cross multiply
474.39x = 711.09 × 230.58 - Step 4: Simplify right side
474.39x = 163,963.13 - Step 5: Solve for x
x = 163,963.13/474.39 - Step 6: Final answer
x = 345.63
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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.