Finding the Fourth Proportional to 343,967.15, 515,424.69 and 144,178.62
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Solution
The fourth proportional to 343,967.15, 515,424.69 and 144,178.62 is: 216,047.44
Step by Step Solution
- Step 1: Write the proportion equation
343,967.15 : 515,424.69 = 144,178.62 : x - Step 2: Convert to fraction form
343,967.15/515,424.69 = 144,178.62/x - Step 3: Cross multiply
343,967.15x = 515,424.69 × 144,178.62 - Step 4: Simplify right side
343,967.15x = 74,313,220,518.13 - Step 5: Solve for x
x = 74,313,220,518.13/343,967.15 - Step 6: Final answer
x = 216,047.44
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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.