Finding the Fourth Proportional to 229,637.12, 316,897.80 and 129,035.12
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Solution
The fourth proportional to 229,637.12, 316,897.80 and 129,035.12 is: 178,067.66
Step by Step Solution
- Step 1: Write the proportion equation
229,637.12 : 316,897.80 = 129,035.12 : x - Step 2: Convert to fraction form
229,637.12/316,897.80 = 129,035.12/x - Step 3: Cross multiply
229,637.12x = 316,897.80 × 129,035.12 - Step 4: Simplify right side
229,637.12x = 40,890,945,650.74 - Step 5: Solve for x
x = 40,890,945,650.74/229,637.12 - Step 6: Final answer
x = 178,067.66
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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.