Finding the Fourth Proportional to 420,350.96, 630,862.68 and 220,789.03
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Solution
The fourth proportional to 420,350.96, 630,862.68 and 220,789.03 is: 331,360.15
Step by Step Solution
- Step 1: Write the proportion equation
420,350.96 : 630,862.68 = 220,789.03 : x - Step 2: Convert to fraction form
420,350.96/630,862.68 = 220,789.03/x - Step 3: Cross multiply
420,350.96x = 630,862.68 × 220,789.03 - Step 4: Simplify right side
420,350.96x = 139,287,559,180.40 - Step 5: Solve for x
x = 139,287,559,180.40/420,350.96 - Step 6: Final answer
x = 331,360.15
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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.