Finding the Fourth Proportional to 272,863.08, 408,539.88 and 139,456.08
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Solution
The fourth proportional to 272,863.08, 408,539.88 and 139,456.08 is: 208,798.38
Step by Step Solution
- Step 1: Write the proportion equation
272,863.08 : 408,539.88 = 139,456.08 : x - Step 2: Convert to fraction form
272,863.08/408,539.88 = 139,456.08/x - Step 3: Cross multiply
272,863.08x = 408,539.88 × 139,456.08 - Step 4: Simplify right side
272,863.08x = 56,973,370,188.47 - Step 5: Solve for x
x = 56,973,370,188.47/272,863.08 - Step 6: Final answer
x = 208,798.38
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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.