Finding the Fourth Proportional to 474,663.26, 711,904.17 and 142,239.26
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Solution
The fourth proportional to 474,663.26, 711,904.17 and 142,239.26 is: 213,331.70
Step by Step Solution
- Step 1: Write the proportion equation
474,663.26 : 711,904.17 = 142,239.26 : x - Step 2: Convert to fraction form
474,663.26/711,904.17 = 142,239.26/x - Step 3: Cross multiply
474,663.26x = 711,904.17 × 142,239.26 - Step 4: Simplify right side
474,663.26x = 101,260,722,331.71 - Step 5: Solve for x
x = 101,260,722,331.71/474,663.26 - Step 6: Final answer
x = 213,331.70
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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.