Finding the Fourth Proportional to 140.23, 210.18 and 59.05
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Solution
The fourth proportional to 140.23, 210.18 and 59.05 is: 88.51
Step by Step Solution
- Step 1: Write the proportion equation
140.23 : 210.18 = 59.05 : x - Step 2: Convert to fraction form
140.23/210.18 = 59.05/x - Step 3: Cross multiply
140.23x = 210.18 × 59.05 - Step 4: Simplify right side
140.23x = 12,411.13 - Step 5: Solve for x
x = 12,411.13/140.23 - Step 6: Final answer
x = 88.51
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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.