Finding the Fourth Proportional to 382,998.84, 528,631.50 and 221,827.88
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Solution
The fourth proportional to 382,998.84, 528,631.50 and 221,827.88 is: 306,176.39
Step by Step Solution
- Step 1: Write the proportion equation
382,998.84 : 528,631.50 = 221,827.88 : x - Step 2: Convert to fraction form
382,998.84/528,631.50 = 221,827.88/x - Step 3: Cross multiply
382,998.84x = 528,631.50 × 221,827.88 - Step 4: Simplify right side
382,998.84x = 117,265,202,303.06 - Step 5: Solve for x
x = 117,265,202,303.06/382,998.84 - Step 6: Final answer
x = 306,176.39
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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.