Finding the Fourth Proportional to 279,421.74, 385,591.30 and 158,555.81
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Solution
The fourth proportional to 279,421.74, 385,591.30 and 158,555.81 is: 218,800.95
Step by Step Solution
- Step 1: Write the proportion equation
279,421.74 : 385,591.30 = 158,555.81 : x - Step 2: Convert to fraction form
279,421.74/385,591.30 = 158,555.81/x - Step 3: Cross multiply
279,421.74x = 385,591.30 × 158,555.81 - Step 4: Simplify right side
279,421.74x = 61,137,741,468.04 - Step 5: Solve for x
x = 61,137,741,468.04/279,421.74 - Step 6: Final answer
x = 218,800.95
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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.