Finding the Fourth Proportional to 255,625.40, 383,438.10 and 68,655.80
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Solution
The fourth proportional to 255,625.40, 383,438.10 and 68,655.80 is: 102,983.70
Step by Step Solution
- Step 1: Write the proportion equation
255,625.40 : 383,438.10 = 68,655.80 : x - Step 2: Convert to fraction form
255,625.40/383,438.10 = 68,655.80/x - Step 3: Cross multiply
255,625.40x = 383,438.10 × 68,655.80 - Step 4: Simplify right side
255,625.40x = 26,325,249,505.98 - Step 5: Solve for x
x = 26,325,249,505.98/255,625.40 - Step 6: Final answer
x = 102,983.70
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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.