Finding the Fourth Proportional to 298,987.60, 448,471.68 and 121,442.08
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Solution
The fourth proportional to 298,987.60, 448,471.68 and 121,442.08 is: 182,159.17
Step by Step Solution
- Step 1: Write the proportion equation
298,987.60 : 448,471.68 = 121,442.08 : x - Step 2: Convert to fraction form
298,987.60/448,471.68 = 121,442.08/x - Step 3: Cross multiply
298,987.60x = 448,471.68 × 121,442.08 - Step 4: Simplify right side
298,987.60x = 54,463,333,640.29 - Step 5: Solve for x
x = 54,463,333,640.29/298,987.60 - Step 6: Final answer
x = 182,159.17
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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.