Finding the Fourth Proportional to 388,817.75, 583,226.63 and 93,329.75
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Solution
The fourth proportional to 388,817.75, 583,226.63 and 93,329.75 is: 139,994.63
Step by Step Solution
- Step 1: Write the proportion equation
388,817.75 : 583,226.63 = 93,329.75 : x - Step 2: Convert to fraction form
388,817.75/583,226.63 = 93,329.75/x - Step 3: Cross multiply
388,817.75x = 583,226.63 × 93,329.75 - Step 4: Simplify right side
388,817.75x = 54,432,395,571.24 - Step 5: Solve for x
x = 54,432,395,571.24/388,817.75 - Step 6: Final answer
x = 139,994.63
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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.