Finding the Fourth Proportional to 229,583.55, 316,776.69 and 138,921.87
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Solution
The fourth proportional to 229,583.55, 316,776.69 and 138,921.87 is: 191,682.77
Step by Step Solution
- Step 1: Write the proportion equation
229,583.55 : 316,776.69 = 138,921.87 : x - Step 2: Convert to fraction form
229,583.55/316,776.69 = 138,921.87/x - Step 3: Cross multiply
229,583.55x = 316,776.69 × 138,921.87 - Step 4: Simplify right side
229,583.55x = 44,007,210,147.21 - Step 5: Solve for x
x = 44,007,210,147.21/229,583.55 - Step 6: Final answer
x = 191,682.77
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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.