Finding the Fourth Proportional to 657,132.21, 985,274.52 and 257,813.34
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Solution
The fourth proportional to 657,132.21, 985,274.52 and 257,813.34 is: 386,553.74
Step by Step Solution
- Step 1: Write the proportion equation
657,132.21 : 985,274.52 = 257,813.34 : x - Step 2: Convert to fraction form
657,132.21/985,274.52 = 257,813.34/x - Step 3: Cross multiply
657,132.21x = 985,274.52 × 257,813.34 - Step 4: Simplify right side
657,132.21x = 254,016,914,818.10 - Step 5: Solve for x
x = 254,016,914,818.10/657,132.21 - Step 6: Final answer
x = 386,553.74
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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.