Finding the Fourth Proportional to 276,266.08, 381,211.32 and 155,403.28
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Solution
The fourth proportional to 276,266.08, 381,211.32 and 155,403.28 is: 214,436.35
Step by Step Solution
- Step 1: Write the proportion equation
276,266.08 : 381,211.32 = 155,403.28 : x - Step 2: Convert to fraction form
276,266.08/381,211.32 = 155,403.28/x - Step 3: Cross multiply
276,266.08x = 381,211.32 × 155,403.28 - Step 4: Simplify right side
276,266.08x = 59,241,489,501.13 - Step 5: Solve for x
x = 59,241,489,501.13/276,266.08 - Step 6: Final answer
x = 214,436.35
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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.