Finding the Fourth Proportional to 382,013.91, 527,169.72 and 212,248.44
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Solution
The fourth proportional to 382,013.91, 527,169.72 and 212,248.44 is: 292,897.58
Step by Step Solution
- Step 1: Write the proportion equation
382,013.91 : 527,169.72 = 212,248.44 : x - Step 2: Convert to fraction form
382,013.91/527,169.72 = 212,248.44/x - Step 3: Cross multiply
382,013.91x = 527,169.72 × 212,248.44 - Step 4: Simplify right side
382,013.91x = 111,890,950,685.24 - Step 5: Solve for x
x = 111,890,950,685.24/382,013.91 - Step 6: Final answer
x = 292,897.58
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1.5x scale
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.