Finding the Fourth Proportional to 342,628.18, 472,821.16 and 189,663.14
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Solution
The fourth proportional to 342,628.18, 472,821.16 and 189,663.14 is: 261,731.96
Step by Step Solution
- Step 1: Write the proportion equation
342,628.18 : 472,821.16 = 189,663.14 : x - Step 2: Convert to fraction form
342,628.18/472,821.16 = 189,663.14/x - Step 3: Cross multiply
342,628.18x = 472,821.16 × 189,663.14 - Step 4: Simplify right side
342,628.18x = 89,676,742,551.62 - Step 5: Solve for x
x = 89,676,742,551.62/342,628.18 - Step 6: Final answer
x = 261,731.96
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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.