Finding the Fourth Proportional to 389,478.18, 584,158.80 and 123,204.09
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Solution
The fourth proportional to 389,478.18, 584,158.80 and 123,204.09 is: 184,787.64
Step by Step Solution
- Step 1: Write the proportion equation
389,478.18 : 584,158.80 = 123,204.09 : x - Step 2: Convert to fraction form
389,478.18/584,158.80 = 123,204.09/x - Step 3: Cross multiply
389,478.18x = 584,158.80 × 123,204.09 - Step 4: Simplify right side
389,478.18x = 71,970,756,022.10 - Step 5: Solve for x
x = 71,970,756,022.10/389,478.18 - Step 6: Final answer
x = 184,787.64
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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.