Finding the Fourth Proportional to 242,920.19, 335,230.45 and 135,497.18
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Solution
The fourth proportional to 242,920.19, 335,230.45 and 135,497.18 is: 186,986.44
Step by Step Solution
- Step 1: Write the proportion equation
242,920.19 : 335,230.45 = 135,497.18 : x - Step 2: Convert to fraction form
242,920.19/335,230.45 = 135,497.18/x - Step 3: Cross multiply
242,920.19x = 335,230.45 × 135,497.18 - Step 4: Simplify right side
242,920.19x = 45,422,781,124.46 - Step 5: Solve for x
x = 45,422,781,124.46/242,920.19 - Step 6: Final answer
x = 186,986.44
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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.