Finding the Fourth Proportional to 400.65, 552.99 and 289.94
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Solution
The fourth proportional to 400.65, 552.99 and 289.94 is: 400.18
Step by Step Solution
- Step 1: Write the proportion equation
400.65 : 552.99 = 289.94 : x - Step 2: Convert to fraction form
400.65/552.99 = 289.94/x - Step 3: Cross multiply
400.65x = 552.99 × 289.94 - Step 4: Simplify right side
400.65x = 160,332.24 - Step 5: Solve for x
x = 160,332.24/400.65 - Step 6: Final answer
x = 400.18
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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.