Finding the Fourth Proportional to 171,929.20, 257,893.80 and 157,154.80
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Solution
The fourth proportional to 171,929.20, 257,893.80 and 157,154.80 is: 235,732.20
Step by Step Solution
- Step 1: Write the proportion equation
171,929.20 : 257,893.80 = 157,154.80 : x - Step 2: Convert to fraction form
171,929.20/257,893.80 = 157,154.80/x - Step 3: Cross multiply
171,929.20x = 257,893.80 × 157,154.80 - Step 4: Simplify right side
171,929.20x = 40,529,248,560.24 - Step 5: Solve for x
x = 40,529,248,560.24/171,929.20 - Step 6: Final answer
x = 235,732.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.