Finding the Fourth Proportional to 189,332.74, 261,279.16 and 104,449.80
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Solution
The fourth proportional to 189,332.74, 261,279.16 and 104,449.80 is: 144,140.72
Step by Step Solution
- Step 1: Write the proportion equation
189,332.74 : 261,279.16 = 104,449.80 : x - Step 2: Convert to fraction form
189,332.74/261,279.16 = 104,449.80/x - Step 3: Cross multiply
189,332.74x = 261,279.16 × 104,449.80 - Step 4: Simplify right side
189,332.74x = 27,290,556,006.17 - Step 5: Solve for x
x = 27,290,556,006.17/189,332.74 - Step 6: Final answer
x = 144,140.72
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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.