Finding the Fourth Proportional to 369,408.99, 509,772.85 and 208,261.72
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Solution
The fourth proportional to 369,408.99, 509,772.85 and 208,261.72 is: 287,394.66
Step by Step Solution
- Step 1: Write the proportion equation
369,408.99 : 509,772.85 = 208,261.72 : x - Step 2: Convert to fraction form
369,408.99/509,772.85 = 208,261.72/x - Step 3: Cross multiply
369,408.99x = 509,772.85 × 208,261.72 - Step 4: Simplify right side
369,408.99x = 106,166,170,550.30 - Step 5: Solve for x
x = 106,166,170,550.30/369,408.99 - Step 6: Final answer
x = 287,394.66
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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.