Finding the Fourth Proportional to 311,567.77, 429,750.00 and 190,768.71
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Solution
The fourth proportional to 311,567.77, 429,750.00 and 190,768.71 is: 263,130.08
Step by Step Solution
- Step 1: Write the proportion equation
311,567.77 : 429,750.00 = 190,768.71 : x - Step 2: Convert to fraction form
311,567.77/429,750.00 = 190,768.71/x - Step 3: Cross multiply
311,567.77x = 429,750.00 × 190,768.71 - Step 4: Simplify right side
311,567.77x = 81,982,851,578.25 - Step 5: Solve for x
x = 81,982,851,578.25/311,567.77 - Step 6: Final answer
x = 263,130.08
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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.