Finding the Fourth Proportional to 178,682.96, 268,024.44 and 139,269.80
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Solution
The fourth proportional to 178,682.96, 268,024.44 and 139,269.80 is: 208,904.70
Step by Step Solution
- Step 1: Write the proportion equation
178,682.96 : 268,024.44 = 139,269.80 : x - Step 2: Convert to fraction form
178,682.96/268,024.44 = 139,269.80/x - Step 3: Cross multiply
178,682.96x = 268,024.44 × 139,269.80 - Step 4: Simplify right side
178,682.96x = 37,327,710,153.91 - Step 5: Solve for x
x = 37,327,710,153.91/178,682.96 - Step 6: Final answer
x = 208,904.70
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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.