Finding the Fourth Proportional to 257,530.20, 386,376.30 and 124,414.80
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Solution
The fourth proportional to 257,530.20, 386,376.30 and 124,414.80 is: 186,661.33
Step by Step Solution
- Step 1: Write the proportion equation
257,530.20 : 386,376.30 = 124,414.80 : x - Step 2: Convert to fraction form
257,530.20/386,376.30 = 124,414.80/x - Step 3: Cross multiply
257,530.20x = 386,376.30 × 124,414.80 - Step 4: Simplify right side
257,530.20x = 48,070,930,089.24 - Step 5: Solve for x
x = 48,070,930,089.24/257,530.20 - Step 6: Final answer
x = 186,661.33
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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.