Finding the Fourth Proportional to 171,678.80, 257,518.20 and 97,029.20
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Solution
The fourth proportional to 171,678.80, 257,518.20 and 97,029.20 is: 145,543.80
Step by Step Solution
- Step 1: Write the proportion equation
171,678.80 : 257,518.20 = 97,029.20 : x - Step 2: Convert to fraction form
171,678.80/257,518.20 = 97,029.20/x - Step 3: Cross multiply
171,678.80x = 257,518.20 × 97,029.20 - Step 4: Simplify right side
171,678.80x = 24,986,784,931.44 - Step 5: Solve for x
x = 24,986,784,931.44/171,678.80 - Step 6: Final answer
x = 145,543.80
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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.