Finding the Fourth Proportional to 288,041.88, 397,434.12 and 167,113.08
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Solution
The fourth proportional to 288,041.88, 397,434.12 and 167,113.08 is: 230,579.11
Step by Step Solution
- Step 1: Write the proportion equation
288,041.88 : 397,434.12 = 167,113.08 : x - Step 2: Convert to fraction form
288,041.88/397,434.12 = 167,113.08/x - Step 3: Cross multiply
288,041.88x = 397,434.12 × 167,113.08 - Step 4: Simplify right side
288,041.88x = 66,416,439,890.29 - Step 5: Solve for x
x = 66,416,439,890.29/288,041.88 - Step 6: Final answer
x = 230,579.11
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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.