Finding the Fourth Proportional to 218,964.58, 328,418.56 and 69,219.98
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Solution
The fourth proportional to 218,964.58, 328,418.56 and 69,219.98 is: 103,821.02
Step by Step Solution
- Step 1: Write the proportion equation
218,964.58 : 328,418.56 = 69,219.98 : x - Step 2: Convert to fraction form
218,964.58/328,418.56 = 69,219.98/x - Step 3: Cross multiply
218,964.58x = 328,418.56 × 69,219.98 - Step 4: Simplify right side
218,964.58x = 22,733,126,154.83 - Step 5: Solve for x
x = 22,733,126,154.83/218,964.58 - Step 6: Final answer
x = 103,821.02
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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.