Finding the Fourth Proportional to 524.34, 786.42 and 139.50
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Solution
The fourth proportional to 524.34, 786.42 and 139.50 is: 209.23
Step by Step Solution
- Step 1: Write the proportion equation
524.34 : 786.42 = 139.50 : x - Step 2: Convert to fraction form
524.34/786.42 = 139.50/x - Step 3: Cross multiply
524.34x = 786.42 × 139.50 - Step 4: Simplify right side
524.34x = 109,705.59 - Step 5: Solve for x
x = 109,705.59/524.34 - Step 6: Final answer
x = 209.23
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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.