Finding the Fourth Proportional to 229,966.56, 317,354.76 and 129,358.08
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Solution
The fourth proportional to 229,966.56, 317,354.76 and 129,358.08 is: 178,514.66
Step by Step Solution
- Step 1: Write the proportion equation
229,966.56 : 317,354.76 = 129,358.08 : x - Step 2: Convert to fraction form
229,966.56/317,354.76 = 129,358.08/x - Step 3: Cross multiply
229,966.56x = 317,354.76 × 129,358.08 - Step 4: Simplify right side
229,966.56x = 41,052,402,432.46 - Step 5: Solve for x
x = 41,052,402,432.46/229,966.56 - Step 6: Final answer
x = 178,514.66
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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.