Finding the Fourth Proportional to 287,700.10, 397,031.37 and 160,361.98
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Solution
The fourth proportional to 287,700.10, 397,031.37 and 160,361.98 is: 221,302.45
Step by Step Solution
- Step 1: Write the proportion equation
287,700.10 : 397,031.37 = 160,361.98 : x - Step 2: Convert to fraction form
287,700.10/397,031.37 = 160,361.98/x - Step 3: Cross multiply
287,700.10x = 397,031.37 × 160,361.98 - Step 4: Simplify right side
287,700.10x = 63,668,736,615.31 - Step 5: Solve for x
x = 63,668,736,615.31/287,700.10 - Step 6: Final answer
x = 221,302.45
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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.