Finding the Fourth Proportional to 486,587.70, 729,881.55 and 154,163.70
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Solution
The fourth proportional to 486,587.70, 729,881.55 and 154,163.70 is: 231,245.55
Step by Step Solution
- Step 1: Write the proportion equation
486,587.70 : 729,881.55 = 154,163.70 : x - Step 2: Convert to fraction form
486,587.70/729,881.55 = 154,163.70/x - Step 3: Cross multiply
486,587.70x = 729,881.55 × 154,163.70 - Step 4: Simplify right side
486,587.70x = 112,521,240,309.74 - Step 5: Solve for x
x = 112,521,240,309.74/486,587.70 - Step 6: Final answer
x = 231,245.55
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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.