Finding the Fourth Proportional to 235,423.80, 353,135.70 and 218,143.80
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Solution
The fourth proportional to 235,423.80, 353,135.70 and 218,143.80 is: 327,215.70
Step by Step Solution
- Step 1: Write the proportion equation
235,423.80 : 353,135.70 = 218,143.80 : x - Step 2: Convert to fraction form
235,423.80/353,135.70 = 218,143.80/x - Step 3: Cross multiply
235,423.80x = 353,135.70 × 218,143.80 - Step 4: Simplify right side
235,423.80x = 77,034,363,513.66 - Step 5: Solve for x
x = 77,034,363,513.66/235,423.80 - Step 6: Final answer
x = 327,215.70
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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.