Finding the Fourth Proportional to 288,004.09, 397,431.12 and 160,655.08
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Solution
The fourth proportional to 288,004.09, 397,431.12 and 160,655.08 is: 221,695.91
Step by Step Solution
- Step 1: Write the proportion equation
288,004.09 : 397,431.12 = 160,655.08 : x - Step 2: Convert to fraction form
288,004.09/397,431.12 = 160,655.08/x - Step 3: Cross multiply
288,004.09x = 397,431.12 × 160,655.08 - Step 4: Simplify right side
288,004.09x = 63,849,328,378.09 - Step 5: Solve for x
x = 63,849,328,378.09/288,004.09 - Step 6: Final answer
x = 221,695.91
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1.5x scale
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.