Finding the Fourth Proportional to 430.10, 644.70 and 169.99
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Solution
The fourth proportional to 430.10, 644.70 and 169.99 is: 254.81
Step by Step Solution
- Step 1: Write the proportion equation
430.10 : 644.70 = 169.99 : x - Step 2: Convert to fraction form
430.10/644.70 = 169.99/x - Step 3: Cross multiply
430.10x = 644.70 × 169.99 - Step 4: Simplify right side
430.10x = 109,594.00 - Step 5: Solve for x
x = 109,594.00/430.10 - Step 6: Final answer
x = 254.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.