Finding the Fourth Proportional to 288,117.12, 397,490.64 and 180,499.68
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Solution
The fourth proportional to 288,117.12, 397,490.64 and 180,499.68 is: 249,020.03
Step by Step Solution
- Step 1: Write the proportion equation
288,117.12 : 397,490.64 = 180,499.68 : x - Step 2: Convert to fraction form
288,117.12/397,490.64 = 180,499.68/x - Step 3: Cross multiply
288,117.12x = 397,490.64 × 180,499.68 - Step 4: Simplify right side
288,117.12x = 71,746,933,323.00 - Step 5: Solve for x
x = 71,746,933,323.00/288,117.12 - Step 6: Final answer
x = 249,020.03
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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.