Finding the Fourth Proportional to 276,294.92, 381,265.18 and 155,412.14
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Solution
The fourth proportional to 276,294.92, 381,265.18 and 155,412.14 is: 214,456.49
Step by Step Solution
- Step 1: Write the proportion equation
276,294.92 : 381,265.18 = 155,412.14 : x - Step 2: Convert to fraction form
276,294.92/381,265.18 = 155,412.14/x - Step 3: Cross multiply
276,294.92x = 381,265.18 × 155,412.14 - Step 4: Simplify right side
276,294.92x = 59,253,237,531.29 - Step 5: Solve for x
x = 59,253,237,531.29/276,294.92 - Step 6: Final answer
x = 214,456.49
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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.