Finding the Fourth Proportional to 288,845.64, 398,472.66 and 186,903.99
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Solution
The fourth proportional to 288,845.64, 398,472.66 and 186,903.99 is: 257,840.59
Step by Step Solution
- Step 1: Write the proportion equation
288,845.64 : 398,472.66 = 186,903.99 : x - Step 2: Convert to fraction form
288,845.64/398,472.66 = 186,903.99/x - Step 3: Cross multiply
288,845.64x = 398,472.66 × 186,903.99 - Step 4: Simplify right side
288,845.64x = 74,476,130,059.91 - Step 5: Solve for x
x = 74,476,130,059.91/288,845.64 - Step 6: Final answer
x = 257,840.59
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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.