Finding the Fourth Proportional to 208,341.68, 287,511.60 and 112,848.08
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Solution
The fourth proportional to 208,341.68, 287,511.60 and 112,848.08 is: 155,730.39
Step by Step Solution
- Step 1: Write the proportion equation
208,341.68 : 287,511.60 = 112,848.08 : x - Step 2: Convert to fraction form
208,341.68/287,511.60 = 112,848.08/x - Step 3: Cross multiply
208,341.68x = 287,511.60 × 112,848.08 - Step 4: Simplify right side
208,341.68x = 32,445,132,037.73 - Step 5: Solve for x
x = 32,445,132,037.73/208,341.68 - Step 6: Final answer
x = 155,730.39
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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.