Finding the Fourth Proportional to 331,506.80, 497,260.20 and 219,313.70
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Solution
The fourth proportional to 331,506.80, 497,260.20 and 219,313.70 is: 328,970.55
Step by Step Solution
- Step 1: Write the proportion equation
331,506.80 : 497,260.20 = 219,313.70 : x - Step 2: Convert to fraction form
331,506.80/497,260.20 = 219,313.70/x - Step 3: Cross multiply
331,506.80x = 497,260.20 × 219,313.70 - Step 4: Simplify right side
331,506.80x = 109,055,974,324.74 - Step 5: Solve for x
x = 109,055,974,324.74/331,506.80 - Step 6: Final answer
x = 328,970.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.