Finding the Fourth Proportional to 642,153.08, 963,274.60 and 257,901.96
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Solution
The fourth proportional to 642,153.08, 963,274.60 and 257,901.96 is: 386,871.01
Step by Step Solution
- Step 1: Write the proportion equation
642,153.08 : 963,274.60 = 257,901.96 : x - Step 2: Convert to fraction form
642,153.08/963,274.60 = 257,901.96/x - Step 3: Cross multiply
642,153.08x = 963,274.60 × 257,901.96 - Step 4: Simplify right side
642,153.08x = 248,430,411,292.87 - Step 5: Solve for x
x = 248,430,411,292.87/642,153.08 - Step 6: Final answer
x = 386,871.01
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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.