Finding the Fourth Proportional to 208,761.98, 288,089.87 and 118,117.17
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Solution
The fourth proportional to 208,761.98, 288,089.87 and 118,117.17 is: 163,000.76
Step by Step Solution
- Step 1: Write the proportion equation
208,761.98 : 288,089.87 = 118,117.17 : x - Step 2: Convert to fraction form
208,761.98/288,089.87 = 118,117.17/x - Step 3: Cross multiply
208,761.98x = 288,089.87 × 118,117.17 - Step 4: Simplify right side
208,761.98x = 34,028,359,559.48 - Step 5: Solve for x
x = 34,028,359,559.48/208,761.98 - Step 6: Final answer
x = 163,000.76
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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.