Finding the Fourth Proportional to 272,611.72, 409,000.98 and 139,586.08
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Solution
The fourth proportional to 272,611.72, 409,000.98 and 139,586.08 is: 209,421.82
Step by Step Solution
- Step 1: Write the proportion equation
272,611.72 : 409,000.98 = 139,586.08 : x - Step 2: Convert to fraction form
272,611.72/409,000.98 = 139,586.08/x - Step 3: Cross multiply
272,611.72x = 409,000.98 × 139,586.08 - Step 4: Simplify right side
272,611.72x = 57,090,843,514.36 - Step 5: Solve for x
x = 57,090,843,514.36/272,611.72 - Step 6: Final answer
x = 209,421.82
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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.