Finding the Fourth Proportional to 242,920.08, 335,231.60 and 135,497.12
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Solution
The fourth proportional to 242,920.08, 335,231.60 and 135,497.12 is: 186,987.08
Step by Step Solution
- Step 1: Write the proportion equation
242,920.08 : 335,231.60 = 135,497.12 : x - Step 2: Convert to fraction form
242,920.08/335,231.60 = 135,497.12/x - Step 3: Cross multiply
242,920.08x = 335,231.60 × 135,497.12 - Step 4: Simplify right side
242,920.08x = 45,422,916,332.99 - Step 5: Solve for x
x = 45,422,916,332.99/242,920.08 - Step 6: Final answer
x = 186,987.08
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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.