Finding the Fourth Proportional to 309,648.70, 464,591.36 and 120,242.05
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Solution
The fourth proportional to 309,648.70, 464,591.36 and 120,242.05 is: 180,409.02
Step by Step Solution
- Step 1: Write the proportion equation
309,648.70 : 464,591.36 = 120,242.05 : x - Step 2: Convert to fraction form
309,648.70/464,591.36 = 120,242.05/x - Step 3: Cross multiply
309,648.70x = 464,591.36 × 120,242.05 - Step 4: Simplify right side
309,648.70x = 55,863,417,538.69 - Step 5: Solve for x
x = 55,863,417,538.69/309,648.70 - Step 6: Final answer
x = 180,409.02
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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.