Finding the Fourth Proportional to 345,863.05, 518,868.44 and 121,237.19
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Solution
The fourth proportional to 345,863.05, 518,868.44 and 121,237.19 is: 181,881.68
Step by Step Solution
- Step 1: Write the proportion equation
345,863.05 : 518,868.44 = 121,237.19 : x - Step 2: Convert to fraction form
345,863.05/518,868.44 = 121,237.19/x - Step 3: Cross multiply
345,863.05x = 518,868.44 × 121,237.19 - Step 4: Simplify right side
345,863.05x = 62,906,152,790.91 - Step 5: Solve for x
x = 62,906,152,790.91/345,863.05 - Step 6: Final answer
x = 181,881.68
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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.