Finding the Fourth Proportional to 438,135.80, 657,203.70 and 188,817.80
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Solution
The fourth proportional to 438,135.80, 657,203.70 and 188,817.80 is: 283,226.70
Step by Step Solution
- Step 1: Write the proportion equation
438,135.80 : 657,203.70 = 188,817.80 : x - Step 2: Convert to fraction form
438,135.80/657,203.70 = 188,817.80/x - Step 3: Cross multiply
438,135.80x = 657,203.70 × 188,817.80 - Step 4: Simplify right side
438,135.80x = 124,091,756,785.86 - Step 5: Solve for x
x = 124,091,756,785.86/438,135.80 - Step 6: Final answer
x = 283,226.70
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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.