Finding the Fourth Proportional to 381,663.12, 526,718.88 and 211,900.08
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Solution
The fourth proportional to 381,663.12, 526,718.88 and 211,900.08 is: 292,435.31
Step by Step Solution
- Step 1: Write the proportion equation
381,663.12 : 526,718.88 = 211,900.08 : x - Step 2: Convert to fraction form
381,663.12/526,718.88 = 211,900.08/x - Step 3: Cross multiply
381,663.12x = 526,718.88 × 211,900.08 - Step 4: Simplify right side
381,663.12x = 111,611,772,809.51 - Step 5: Solve for x
x = 111,611,772,809.51/381,663.12 - Step 6: Final answer
x = 292,435.31
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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.