Finding the Fourth Proportional to 257,156.34, 354,897.15 and 149,719.95
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Solution
The fourth proportional to 257,156.34, 354,897.15 and 149,719.95 is: 206,625.99
Step by Step Solution
- Step 1: Write the proportion equation
257,156.34 : 354,897.15 = 149,719.95 : x - Step 2: Convert to fraction form
257,156.34/354,897.15 = 149,719.95/x - Step 3: Cross multiply
257,156.34x = 354,897.15 × 149,719.95 - Step 4: Simplify right side
257,156.34x = 53,135,183,553.14 - Step 5: Solve for x
x = 53,135,183,553.14/257,156.34 - Step 6: Final answer
x = 206,625.99
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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.