Finding the Fourth Proportional to 298,521.62, 447,813.81 and 172,158.99
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Solution
The fourth proportional to 298,521.62, 447,813.81 and 172,158.99 is: 258,256.59
Step by Step Solution
- Step 1: Write the proportion equation
298,521.62 : 447,813.81 = 172,158.99 : x - Step 2: Convert to fraction form
298,521.62/447,813.81 = 172,158.99/x - Step 3: Cross multiply
298,521.62x = 447,813.81 × 172,158.99 - Step 4: Simplify right side
298,521.62x = 77,095,173,237.65 - Step 5: Solve for x
x = 77,095,173,237.65/298,521.62 - Step 6: Final answer
x = 258,256.59
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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.