Finding the Fourth Proportional to 272,369.04, 408,553.68 and 85,395.12
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Solution
The fourth proportional to 272,369.04, 408,553.68 and 85,395.12 is: 128,092.72
Step by Step Solution
- Step 1: Write the proportion equation
272,369.04 : 408,553.68 = 85,395.12 : x - Step 2: Convert to fraction form
272,369.04/408,553.68 = 85,395.12/x - Step 3: Cross multiply
272,369.04x = 408,553.68 × 85,395.12 - Step 4: Simplify right side
272,369.04x = 34,888,490,530.04 - Step 5: Solve for x
x = 34,888,490,530.04/272,369.04 - Step 6: Final answer
x = 128,092.72
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1.5x scale
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.