Finding the Fourth Proportional to 358,535.80, 537,803.70 and 311,879.80
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Solution
The fourth proportional to 358,535.80, 537,803.70 and 311,879.80 is: 467,819.70
Step by Step Solution
- Step 1: Write the proportion equation
358,535.80 : 537,803.70 = 311,879.80 : x - Step 2: Convert to fraction form
358,535.80/537,803.70 = 311,879.80/x - Step 3: Cross multiply
358,535.80x = 537,803.70 × 311,879.80 - Step 4: Simplify right side
358,535.80x = 167,730,110,395.26 - Step 5: Solve for x
x = 167,730,110,395.26/358,535.80 - Step 6: Final answer
x = 467,819.70
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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.