Finding the Fourth Proportional to 343,439.36, 515,156.48 and 106,781.60
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Solution
The fourth proportional to 343,439.36, 515,156.48 and 106,781.60 is: 160,171.60
Step by Step Solution
- Step 1: Write the proportion equation
343,439.36 : 515,156.48 = 106,781.60 : x - Step 2: Convert to fraction form
343,439.36/515,156.48 = 106,781.60/x - Step 3: Cross multiply
343,439.36x = 515,156.48 × 106,781.60 - Step 4: Simplify right side
343,439.36x = 55,009,233,184.77 - Step 5: Solve for x
x = 55,009,233,184.77/343,439.36 - Step 6: Final answer
x = 160,171.60
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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.