Finding the Fourth Proportional to 229,462.08, 316,684.80 and 128,859.84
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Solution
The fourth proportional to 229,462.08, 316,684.80 and 128,859.84 is: 177,841.81
Step by Step Solution
- Step 1: Write the proportion equation
229,462.08 : 316,684.80 = 128,859.84 : x - Step 2: Convert to fraction form
229,462.08/316,684.80 = 128,859.84/x - Step 3: Cross multiply
229,462.08x = 316,684.80 × 128,859.84 - Step 4: Simplify right side
229,462.08x = 40,807,952,658.43 - Step 5: Solve for x
x = 40,807,952,658.43/229,462.08 - Step 6: Final answer
x = 177,841.81
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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.