Finding the Fourth Proportional to 259,641.80, 389,462.70 and 119,673.80
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Solution
The fourth proportional to 259,641.80, 389,462.70 and 119,673.80 is: 179,510.70
Step by Step Solution
- Step 1: Write the proportion equation
259,641.80 : 389,462.70 = 119,673.80 : x - Step 2: Convert to fraction form
259,641.80/389,462.70 = 119,673.80/x - Step 3: Cross multiply
259,641.80x = 389,462.70 × 119,673.80 - Step 4: Simplify right side
259,641.80x = 46,608,481,267.26 - Step 5: Solve for x
x = 46,608,481,267.26/259,641.80 - Step 6: Final answer
x = 179,510.70
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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.