Finding the Fourth Proportional to 218,280.61, 301,226.10 and 122,787.99
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Solution
The fourth proportional to 218,280.61, 301,226.10 and 122,787.99 is: 169,446.78
Step by Step Solution
- Step 1: Write the proportion equation
218,280.61 : 301,226.10 = 122,787.99 : x - Step 2: Convert to fraction form
218,280.61/301,226.10 = 122,787.99/x - Step 3: Cross multiply
218,280.61x = 301,226.10 × 122,787.99 - Step 4: Simplify right side
218,280.61x = 36,986,947,354.54 - Step 5: Solve for x
x = 36,986,947,354.54/218,280.61 - Step 6: Final answer
x = 169,446.78
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1.5x scale
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.