Finding the Fourth Proportional to 257,737.68, 386,289.24 and 122,872.80
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Solution
The fourth proportional to 257,737.68, 386,289.24 and 122,872.80 is: 184,157.94
Step by Step Solution
- Step 1: Write the proportion equation
257,737.68 : 386,289.24 = 122,872.80 : x - Step 2: Convert to fraction form
257,737.68/386,289.24 = 122,872.80/x - Step 3: Cross multiply
257,737.68x = 386,289.24 × 122,872.80 - Step 4: Simplify right side
257,737.68x = 47,464,440,528.67 - Step 5: Solve for x
x = 47,464,440,528.67/257,737.68 - Step 6: Final answer
x = 184,157.94
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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.