Finding the Fourth Proportional to 266,742.87, 399,670.05 and 187,691.01
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Solution
The fourth proportional to 266,742.87, 399,670.05 and 187,691.01 is: 281,223.92
Step by Step Solution
- Step 1: Write the proportion equation
266,742.87 : 399,670.05 = 187,691.01 : x - Step 2: Convert to fraction form
266,742.87/399,670.05 = 187,691.01/x - Step 3: Cross multiply
266,742.87x = 399,670.05 × 187,691.01 - Step 4: Simplify right side
266,742.87x = 75,014,475,351.25 - Step 5: Solve for x
x = 75,014,475,351.25/266,742.87 - Step 6: Final answer
x = 281,223.92
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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.