Finding the Fourth Proportional to 306,611.68, 423,123.12 and 170,644.96
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Solution
The fourth proportional to 306,611.68, 423,123.12 and 170,644.96 is: 235,489.49
Step by Step Solution
- Step 1: Write the proportion equation
306,611.68 : 423,123.12 = 170,644.96 : x - Step 2: Convert to fraction form
306,611.68/423,123.12 = 170,644.96/x - Step 3: Cross multiply
306,611.68x = 423,123.12 × 170,644.96 - Step 4: Simplify right side
306,611.68x = 72,203,827,887.48 - Step 5: Solve for x
x = 72,203,827,887.48/306,611.68 - Step 6: Final answer
x = 235,489.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.