Finding the Fourth Proportional to 386,762.10, 579,682.35 and 162,122.10
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Solution
The fourth proportional to 386,762.10, 579,682.35 and 162,122.10 is: 242,989.99
Step by Step Solution
- Step 1: Write the proportion equation
386,762.10 : 579,682.35 = 162,122.10 : x - Step 2: Convert to fraction form
386,762.10/579,682.35 = 162,122.10/x - Step 3: Cross multiply
386,762.10x = 579,682.35 × 162,122.10 - Step 4: Simplify right side
386,762.10x = 93,979,319,914.94 - Step 5: Solve for x
x = 93,979,319,914.94/386,762.10 - Step 6: Final answer
x = 242,989.99
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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.