Finding the Fourth Proportional to 438,534.08, 605,112.28 and 257,177.48
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Solution
The fourth proportional to 438,534.08, 605,112.28 and 257,177.48 is: 354,866.95
Step by Step Solution
- Step 1: Write the proportion equation
438,534.08 : 605,112.28 = 257,177.48 : x - Step 2: Convert to fraction form
438,534.08/605,112.28 = 257,177.48/x - Step 3: Cross multiply
438,534.08x = 605,112.28 × 257,177.48 - Step 4: Simplify right side
438,534.08x = 155,621,251,287.45 - Step 5: Solve for x
x = 155,621,251,287.45/438,534.08 - Step 6: Final answer
x = 354,866.95
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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.