Finding the Fourth Proportional to 306,132.44, 422,467.84 and 168,317.20
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Solution
The fourth proportional to 306,132.44, 422,467.84 and 168,317.20 is: 232,280.52
Step by Step Solution
- Step 1: Write the proportion equation
306,132.44 : 422,467.84 = 168,317.20 : x - Step 2: Convert to fraction form
306,132.44/422,467.84 = 168,317.20/x - Step 3: Cross multiply
306,132.44x = 422,467.84 × 168,317.20 - Step 4: Simplify right side
306,132.44x = 71,108,602,341.30 - Step 5: Solve for x
x = 71,108,602,341.30/306,132.44 - Step 6: Final answer
x = 232,280.52
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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.