Finding the Fourth Proportional to 229,966.84, 317,354.16 and 129,364.84
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Solution
The fourth proportional to 229,966.84, 317,354.16 and 129,364.84 is: 178,523.43
Step by Step Solution
- Step 1: Write the proportion equation
229,966.84 : 317,354.16 = 129,364.84 : x - Step 2: Convert to fraction form
229,966.84/317,354.16 = 129,364.84/x - Step 3: Cross multiply
229,966.84x = 317,354.16 × 129,364.84 - Step 4: Simplify right side
229,966.84x = 41,054,470,131.73 - Step 5: Solve for x
x = 41,054,470,131.73/229,966.84 - Step 6: Final answer
x = 178,523.43
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1.5x scale
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.