Finding the Fourth Proportional to 474,957, 655,432.70 and 257,163.80
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Solution
The fourth proportional to 474,957, 655,432.70 and 257,163.80 is: 354,881.72
Step by Step Solution
- Step 1: Write the proportion equation
474,957 : 655,432.70 = 257,163.80 : x - Step 2: Convert to fraction form
474,957/655,432.70 = 257,163.80/x - Step 3: Cross multiply
474,957x = 655,432.70 × 257,163.80 - Step 4: Simplify right side
474,957x = 168,553,559,213.28 - Step 5: Solve for x
x = 168,553,559,213.28/474,957 - Step 6: Final answer
x = 354,881.72
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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.