Finding the Fourth Proportional to 257,533.20, 386,380.80 and 124,417.80
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Solution
The fourth proportional to 257,533.20, 386,380.80 and 124,417.80 is: 186,665.83
Step by Step Solution
- Step 1: Write the proportion equation
257,533.20 : 386,380.80 = 124,417.80 : x - Step 2: Convert to fraction form
257,533.20/386,380.80 = 124,417.80/x - Step 3: Cross multiply
257,533.20x = 386,380.80 × 124,417.80 - Step 4: Simplify right side
257,533.20x = 48,072,649,098.24 - Step 5: Solve for x
x = 48,072,649,098.24/257,533.20 - Step 6: Final answer
x = 186,665.83
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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.