Finding the Fourth Proportional to 382,911.84, 528,366.24 and 213,122.88
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Solution
The fourth proportional to 382,911.84, 528,366.24 and 213,122.88 is: 294,080.58
Step by Step Solution
- Step 1: Write the proportion equation
382,911.84 : 528,366.24 = 213,122.88 : x - Step 2: Convert to fraction form
382,911.84/528,366.24 = 213,122.88/x - Step 3: Cross multiply
382,911.84x = 528,366.24 × 213,122.88 - Step 4: Simplify right side
382,911.84x = 112,606,934,763.57 - Step 5: Solve for x
x = 112,606,934,763.57/382,911.84 - Step 6: Final answer
x = 294,080.58
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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.