Finding the Fourth Proportional to 160,428.62, 221,391.55 and 88,808.65
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Solution
The fourth proportional to 160,428.62, 221,391.55 and 88,808.65 is: 122,555.96
Step by Step Solution
- Step 1: Write the proportion equation
160,428.62 : 221,391.55 = 88,808.65 : x - Step 2: Convert to fraction form
160,428.62/221,391.55 = 88,808.65/x - Step 3: Cross multiply
160,428.62x = 221,391.55 × 88,808.65 - Step 4: Simplify right side
160,428.62x = 19,661,483,416.31 - Step 5: Solve for x
x = 19,661,483,416.31/160,428.62 - Step 6: Final answer
x = 122,555.96
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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.