Finding the Fourth Proportional to 218,814.03, 328,221.09 and 69,065.99
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Solution
The fourth proportional to 218,814.03, 328,221.09 and 69,065.99 is: 103,598.99
Step by Step Solution
- Step 1: Write the proportion equation
218,814.03 : 328,221.09 = 69,065.99 : x - Step 2: Convert to fraction form
218,814.03/328,221.09 = 69,065.99/x - Step 3: Cross multiply
218,814.03x = 328,221.09 × 69,065.99 - Step 4: Simplify right side
218,814.03x = 22,668,912,878.62 - Step 5: Solve for x
x = 22,668,912,878.62/218,814.03 - Step 6: Final answer
x = 103,598.99
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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.