Finding the Fourth Proportional to 486,014.20, 729,021.30 and 170,430.10
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Solution
The fourth proportional to 486,014.20, 729,021.30 and 170,430.10 is: 255,645.15
Step by Step Solution
- Step 1: Write the proportion equation
486,014.20 : 729,021.30 = 170,430.10 : x - Step 2: Convert to fraction form
486,014.20/729,021.30 = 170,430.10/x - Step 3: Cross multiply
486,014.20x = 729,021.30 × 170,430.10 - Step 4: Simplify right side
486,014.20x = 124,247,173,061.13 - Step 5: Solve for x
x = 124,247,173,061.13/486,014.20 - Step 6: Final answer
x = 255,645.15
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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.