Finding the Fourth Proportional to 243,258.10, 335,696.06 and 135,828.06
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Solution
The fourth proportional to 243,258.10, 335,696.06 and 135,828.06 is: 187,442.66
Step by Step Solution
- Step 1: Write the proportion equation
243,258.10 : 335,696.06 = 135,828.06 : x - Step 2: Convert to fraction form
243,258.10/335,696.06 = 135,828.06/x - Step 3: Cross multiply
243,258.10x = 335,696.06 × 135,828.06 - Step 4: Simplify right side
243,258.10x = 45,596,944,579.44 - Step 5: Solve for x
x = 45,596,944,579.44/243,258.10 - Step 6: Final answer
x = 187,442.66
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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.