Finding the Fourth Proportional to 155,341.58, 214,369.34 and 87,358.53
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Solution
The fourth proportional to 155,341.58, 214,369.34 and 87,358.53 is: 120,553.62
Step by Step Solution
- Step 1: Write the proportion equation
155,341.58 : 214,369.34 = 87,358.53 : x - Step 2: Convert to fraction form
155,341.58/214,369.34 = 87,358.53/x - Step 3: Cross multiply
155,341.58x = 214,369.34 × 87,358.53 - Step 4: Simplify right side
155,341.58x = 18,726,990,419.47 - Step 5: Solve for x
x = 18,726,990,419.47/155,341.58 - Step 6: Final answer
x = 120,553.62
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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.