Finding the Fourth Proportional to 369,506.76, 509,919.75 and 199,740.75
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Solution
The fourth proportional to 369,506.76, 509,919.75 and 199,740.75 is: 275,642.46
Step by Step Solution
- Step 1: Write the proportion equation
369,506.76 : 509,919.75 = 199,740.75 : x - Step 2: Convert to fraction form
369,506.76/509,919.75 = 199,740.75/x - Step 3: Cross multiply
369,506.76x = 509,919.75 × 199,740.75 - Step 4: Simplify right side
369,506.76x = 101,851,753,304.81 - Step 5: Solve for x
x = 101,851,753,304.81/369,506.76 - Step 6: Final answer
x = 275,642.46
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1.5x scale
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.