Finding the Fourth Proportional to 257,562.24, 386,398.08 and 80,064.96
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Solution
The fourth proportional to 257,562.24, 386,398.08 and 80,064.96 is: 120,114.45
Step by Step Solution
- Step 1: Write the proportion equation
257,562.24 : 386,398.08 = 80,064.96 : x - Step 2: Convert to fraction form
257,562.24/386,398.08 = 80,064.96/x - Step 3: Cross multiply
257,562.24x = 386,398.08 × 80,064.96 - Step 4: Simplify right side
257,562.24x = 30,936,946,819.28 - Step 5: Solve for x
x = 30,936,946,819.28/257,562.24 - Step 6: Final answer
x = 120,114.45
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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.