Finding the Fourth Proportional to 438,784.80, 657,658.80 and 186,064.80
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Solution
The fourth proportional to 438,784.80, 657,658.80 and 186,064.80 is: 278,877.37
Step by Step Solution
- Step 1: Write the proportion equation
438,784.80 : 657,658.80 = 186,064.80 : x - Step 2: Convert to fraction form
438,784.80/657,658.80 = 186,064.80/x - Step 3: Cross multiply
438,784.80x = 657,658.80 × 186,064.80 - Step 4: Simplify right side
438,784.80x = 122,367,153,090.24 - Step 5: Solve for x
x = 122,367,153,090.24/438,784.80 - Step 6: Final answer
x = 278,877.37
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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.