Finding the Fourth Proportional to 208,341.18, 287,510.91 and 112,847.58
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Solution
The fourth proportional to 208,341.18, 287,510.91 and 112,847.58 is: 155,729.70
Step by Step Solution
- Step 1: Write the proportion equation
208,341.18 : 287,510.91 = 112,847.58 : x - Step 2: Convert to fraction form
208,341.18/287,510.91 = 112,847.58/x - Step 3: Cross multiply
208,341.18x = 287,510.91 × 112,847.58 - Step 4: Simplify right side
208,341.18x = 32,444,910,417.10 - Step 5: Solve for x
x = 32,444,910,417.10/208,341.18 - Step 6: Final answer
x = 155,729.70
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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.