Finding the Fourth Proportional to 640,106.36, 959,948.46 and 213,524.63
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Solution
The fourth proportional to 640,106.36, 959,948.46 and 213,524.63 is: 320,216.53
Step by Step Solution
- Step 1: Write the proportion equation
640,106.36 : 959,948.46 = 213,524.63 : x - Step 2: Convert to fraction form
640,106.36/959,948.46 = 213,524.63/x - Step 3: Cross multiply
640,106.36x = 959,948.46 × 213,524.63 - Step 4: Simplify right side
640,106.36x = 204,972,634,940.83 - Step 5: Solve for x
x = 204,972,634,940.83/640,106.36 - Step 6: Final answer
x = 320,216.53
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1.5x scale
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.