Finding the Fourth Proportional to 369,178.71, 509,466.63 and 199,412.84
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Solution
The fourth proportional to 369,178.71, 509,466.63 and 199,412.84 is: 275,189.72
Step by Step Solution
- Step 1: Write the proportion equation
369,178.71 : 509,466.63 = 199,412.84 : x - Step 2: Convert to fraction form
369,178.71/509,466.63 = 199,412.84/x - Step 3: Cross multiply
369,178.71x = 509,466.63 × 199,412.84 - Step 4: Simplify right side
369,178.71x = 101,594,185,026.20 - Step 5: Solve for x
x = 101,594,185,026.20/369,178.71 - Step 6: Final answer
x = 275,189.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.