Finding the Fourth Proportional to 420,855.48, 580,830.48 and 239,610.96
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Solution
The fourth proportional to 420,855.48, 580,830.48 and 239,610.96 is: 330,691.55
Step by Step Solution
- Step 1: Write the proportion equation
420,855.48 : 580,830.48 = 239,610.96 : x - Step 2: Convert to fraction form
420,855.48/580,830.48 = 239,610.96/x - Step 3: Cross multiply
420,855.48x = 580,830.48 × 239,610.96 - Step 4: Simplify right side
420,855.48x = 139,173,348,910.06 - Step 5: Solve for x
x = 139,173,348,910.06/420,855.48 - Step 6: Final answer
x = 330,691.55
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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.