Finding the Fourth Proportional to 385,818.84, 578,805.12 and 119,661.12
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Solution
The fourth proportional to 385,818.84, 578,805.12 and 119,661.12 is: 179,515.52
Step by Step Solution
- Step 1: Write the proportion equation
385,818.84 : 578,805.12 = 119,661.12 : x - Step 2: Convert to fraction form
385,818.84/578,805.12 = 119,661.12/x - Step 3: Cross multiply
385,818.84x = 578,805.12 × 119,661.12 - Step 4: Simplify right side
385,818.84x = 69,260,468,920.93 - Step 5: Solve for x
x = 69,260,468,920.93/385,818.84 - Step 6: Final answer
x = 179,515.52
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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.