Finding the Fourth Proportional to 513,236.60, 769,964.94 and 153,435.62
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Solution
The fourth proportional to 513,236.60, 769,964.94 and 153,435.62 is: 230,186.32
Step by Step Solution
- Step 1: Write the proportion equation
513,236.60 : 769,964.94 = 153,435.62 : x - Step 2: Convert to fraction form
513,236.60/769,964.94 = 153,435.62/x - Step 3: Cross multiply
513,236.60x = 769,964.94 × 153,435.62 - Step 4: Simplify right side
513,236.60x = 118,140,045,541.02 - Step 5: Solve for x
x = 118,140,045,541.02/513,236.60 - Step 6: Final answer
x = 230,186.32
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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.