Finding the Fourth Proportional to 257,475.21, 355,296.20 and 144,276.09
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Solution
The fourth proportional to 257,475.21, 355,296.20 and 144,276.09 is: 199,090.02
Step by Step Solution
- Step 1: Write the proportion equation
257,475.21 : 355,296.20 = 144,276.09 : x - Step 2: Convert to fraction form
257,475.21/355,296.20 = 144,276.09/x - Step 3: Cross multiply
257,475.21x = 355,296.20 × 144,276.09 - Step 4: Simplify right side
257,475.21x = 51,260,745,806.48 - Step 5: Solve for x
x = 51,260,745,806.48/257,475.21 - Step 6: Final answer
x = 199,090.02
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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.