Finding the Fourth Proportional to 251,730.08, 347,374.68 and 138,530.96
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Solution
The fourth proportional to 251,730.08, 347,374.68 and 138,530.96 is: 191,165.66
Step by Step Solution
- Step 1: Write the proportion equation
251,730.08 : 347,374.68 = 138,530.96 : x - Step 2: Convert to fraction form
251,730.08/347,374.68 = 138,530.96/x - Step 3: Cross multiply
251,730.08x = 347,374.68 × 138,530.96 - Step 4: Simplify right side
251,730.08x = 48,122,147,900.09 - Step 5: Solve for x
x = 48,122,147,900.09/251,730.08 - Step 6: Final answer
x = 191,165.66
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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.