Finding the Fourth Proportional to 309,905.80, 464,858.70 and 88,289.80
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Solution
The fourth proportional to 309,905.80, 464,858.70 and 88,289.80 is: 132,434.70
Step by Step Solution
- Step 1: Write the proportion equation
309,905.80 : 464,858.70 = 88,289.80 : x - Step 2: Convert to fraction form
309,905.80/464,858.70 = 88,289.80/x - Step 3: Cross multiply
309,905.80x = 464,858.70 × 88,289.80 - Step 4: Simplify right side
309,905.80x = 41,042,281,651.26 - Step 5: Solve for x
x = 41,042,281,651.26/309,905.80 - Step 6: Final answer
x = 132,434.70
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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.