Finding the Fourth Proportional to 288,434.80, 397,477.68 and 207,709.80
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Solution
The fourth proportional to 288,434.80, 397,477.68 and 207,709.80 is: 286,234.56
Step by Step Solution
- Step 1: Write the proportion equation
288,434.80 : 397,477.68 = 207,709.80 : x - Step 2: Convert to fraction form
288,434.80/397,477.68 = 207,709.80/x - Step 3: Cross multiply
288,434.80x = 397,477.68 × 207,709.80 - Step 4: Simplify right side
288,434.80x = 82,560,009,417.26 - Step 5: Solve for x
x = 82,560,009,417.26/288,434.80 - Step 6: Final answer
x = 286,234.56
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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.