Finding the Fourth Proportional to 208,342.68, 287,512.98 and 112,849.08
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Solution
The fourth proportional to 208,342.68, 287,512.98 and 112,849.08 is: 155,731.77
Step by Step Solution
- Step 1: Write the proportion equation
208,342.68 : 287,512.98 = 112,849.08 : x - Step 2: Convert to fraction form
208,342.68/287,512.98 = 112,849.08/x - Step 3: Cross multiply
208,342.68x = 287,512.98 × 112,849.08 - Step 4: Simplify right side
208,342.68x = 32,445,575,281.06 - Step 5: Solve for x
x = 32,445,575,281.06/208,342.68 - Step 6: Final answer
x = 155,731.77
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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.