Finding the Fourth Proportional to 288,698.24, 398,387.35 and 159,629.19
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Solution
The fourth proportional to 288,698.24, 398,387.35 and 159,629.19 is: 220,279.31
Step by Step Solution
- Step 1: Write the proportion equation
288,698.24 : 398,387.35 = 159,629.19 : x - Step 2: Convert to fraction form
288,698.24/398,387.35 = 159,629.19/x - Step 3: Cross multiply
288,698.24x = 398,387.35 × 159,629.19 - Step 4: Simplify right side
288,698.24x = 63,594,249,986.75 - Step 5: Solve for x
x = 63,594,249,986.75/288,698.24 - Step 6: Final answer
x = 220,279.31
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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.