Finding the Fourth Proportional to 275,423.20, 413,207.70 and 97,911.70
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Solution
The fourth proportional to 275,423.20, 413,207.70 and 97,911.70 is: 146,893.47
Step by Step Solution
- Step 1: Write the proportion equation
275,423.20 : 413,207.70 = 97,911.70 : x - Step 2: Convert to fraction form
275,423.20/413,207.70 = 97,911.70/x - Step 3: Cross multiply
275,423.20x = 413,207.70 × 97,911.70 - Step 4: Simplify right side
275,423.20x = 40,457,868,360.09 - Step 5: Solve for x
x = 40,457,868,360.09/275,423.20 - Step 6: Final answer
x = 146,893.47
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1.5x scale
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.