Finding the Fourth Proportional to 257,023.08, 354,677.94 and 143,823.96
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Solution
The fourth proportional to 257,023.08, 354,677.94 and 143,823.96 is: 198,469.28
Step by Step Solution
- Step 1: Write the proportion equation
257,023.08 : 354,677.94 = 143,823.96 : x - Step 2: Convert to fraction form
257,023.08/354,677.94 = 143,823.96/x - Step 3: Cross multiply
257,023.08x = 354,677.94 × 143,823.96 - Step 4: Simplify right side
257,023.08x = 51,011,185,855.44 - Step 5: Solve for x
x = 51,011,185,855.44/257,023.08 - Step 6: Final answer
x = 198,469.28
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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.