Finding the Fourth Proportional to 438,422.30, 657,268.95 and 185,896.70
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Solution
The fourth proportional to 438,422.30, 657,268.95 and 185,896.70 is: 278,690.50
Step by Step Solution
- Step 1: Write the proportion equation
438,422.30 : 657,268.95 = 185,896.70 : x - Step 2: Convert to fraction form
438,422.30/657,268.95 = 185,896.70/x - Step 3: Cross multiply
438,422.30x = 657,268.95 × 185,896.70 - Step 4: Simplify right side
438,422.30x = 122,184,128,817.47 - Step 5: Solve for x
x = 122,184,128,817.47/438,422.30 - Step 6: Final answer
x = 278,690.50
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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.