Finding the Fourth Proportional to 423,990.82, 585,105.42 and 242,701.75
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Solution
The fourth proportional to 423,990.82, 585,105.42 and 242,701.75 is: 334,927.32
Step by Step Solution
- Step 1: Write the proportion equation
423,990.82 : 585,105.42 = 242,701.75 : x - Step 2: Convert to fraction form
423,990.82/585,105.42 = 242,701.75/x - Step 3: Cross multiply
423,990.82x = 585,105.42 × 242,701.75 - Step 4: Simplify right side
423,990.82x = 142,006,109,368.49 - Step 5: Solve for x
x = 142,006,109,368.49/423,990.82 - Step 6: Final answer
x = 334,927.32
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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.