Finding the Fourth Proportional to 242,921.19, 335,231.83 and 135,498.18
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Solution
The fourth proportional to 242,921.19, 335,231.83 and 135,498.18 is: 186,987.82
Step by Step Solution
- Step 1: Write the proportion equation
242,921.19 : 335,231.83 = 135,498.18 : x - Step 2: Convert to fraction form
242,921.19/335,231.83 = 135,498.18/x - Step 3: Cross multiply
242,921.19x = 335,231.83 × 135,498.18 - Step 4: Simplify right side
242,921.19x = 45,423,302,843.07 - Step 5: Solve for x
x = 45,423,302,843.07/242,921.19 - Step 6: Final answer
x = 186,987.82
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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.