Finding the Fourth Proportional to 251,675.13, 347,311.73 and 138,497.88
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Solution
The fourth proportional to 251,675.13, 347,311.73 and 138,497.88 is: 191,127.10
Step by Step Solution
- Step 1: Write the proportion equation
251,675.13 : 347,311.73 = 138,497.88 : x - Step 2: Convert to fraction form
251,675.13/347,311.73 = 138,497.88/x - Step 3: Cross multiply
251,675.13x = 347,311.73 × 138,497.88 - Step 4: Simplify right side
251,675.13x = 48,101,935,875.08 - Step 5: Solve for x
x = 48,101,935,875.08/251,675.13 - Step 6: Final answer
x = 191,127.10
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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.