Finding the Fourth Proportional to 430.14, 644.46 and 352.99
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Solution
The fourth proportional to 430.14, 644.46 and 352.99 is: 528.86
Step by Step Solution
- Step 1: Write the proportion equation
430.14 : 644.46 = 352.99 : x - Step 2: Convert to fraction form
430.14/644.46 = 352.99/x - Step 3: Cross multiply
430.14x = 644.46 × 352.99 - Step 4: Simplify right side
430.14x = 227,487.42 - Step 5: Solve for x
x = 227,487.42/430.14 - Step 6: Final answer
x = 528.86
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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.