Finding the Fourth Proportional to 257,037.08, 354,697.26 and 143,837.96
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Solution
The fourth proportional to 257,037.08, 354,697.26 and 143,837.96 is: 198,488.60
Step by Step Solution
- Step 1: Write the proportion equation
257,037.08 : 354,697.26 = 143,837.96 : x - Step 2: Convert to fraction form
257,037.08/354,697.26 = 143,837.96/x - Step 3: Cross multiply
257,037.08x = 354,697.26 × 143,837.96 - Step 4: Simplify right side
257,037.08x = 51,018,930,295.99 - Step 5: Solve for x
x = 51,018,930,295.99/257,037.08 - Step 6: Final answer
x = 198,488.60
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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.