Finding the Fourth Proportional to 460,201.70, 690,302.55 and 127,777.70
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Solution
The fourth proportional to 460,201.70, 690,302.55 and 127,777.70 is: 191,666.55
Step by Step Solution
- Step 1: Write the proportion equation
460,201.70 : 690,302.55 = 127,777.70 : x - Step 2: Convert to fraction form
460,201.70/690,302.55 = 127,777.70/x - Step 3: Cross multiply
460,201.70x = 690,302.55 × 127,777.70 - Step 4: Simplify right side
460,201.70x = 88,205,272,143.14 - Step 5: Solve for x
x = 88,205,272,143.14/460,201.70 - Step 6: Final answer
x = 191,666.55
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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.