Finding the Fourth Proportional to 119,202.18, 178,803.06 and 30,455.70
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Solution
The fourth proportional to 119,202.18, 178,803.06 and 30,455.70 is: 45,683.50
Step by Step Solution
- Step 1: Write the proportion equation
119,202.18 : 178,803.06 = 30,455.70 : x - Step 2: Convert to fraction form
119,202.18/178,803.06 = 30,455.70/x - Step 3: Cross multiply
119,202.18x = 178,803.06 × 30,455.70 - Step 4: Simplify right side
119,202.18x = 5,445,572,354.44 - Step 5: Solve for x
x = 5,445,572,354.44/119,202.18 - Step 6: Final answer
x = 45,683.50
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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.