Finding the Fourth Proportional to 288,531.44, 432,420.12 and 208,837.84
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Solution
The fourth proportional to 288,531.44, 432,420.12 and 208,837.84 is: 312,983.86
Step by Step Solution
- Step 1: Write the proportion equation
288,531.44 : 432,420.12 = 208,837.84 : x - Step 2: Convert to fraction form
288,531.44/432,420.12 = 208,837.84/x - Step 3: Cross multiply
288,531.44x = 432,420.12 × 208,837.84 - Step 4: Simplify right side
288,531.44x = 90,305,683,833.34 - Step 5: Solve for x
x = 90,305,683,833.34/288,531.44 - Step 6: Final answer
x = 312,983.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.