Finding the Fourth Proportional to 293,257.40, 440,420.70 and 256,515.80
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Solution
The fourth proportional to 293,257.40, 440,420.70 and 256,515.80 is: 385,241.32
Step by Step Solution
- Step 1: Write the proportion equation
293,257.40 : 440,420.70 = 256,515.80 : x - Step 2: Convert to fraction form
293,257.40/440,420.70 = 256,515.80/x - Step 3: Cross multiply
293,257.40x = 440,420.70 × 256,515.80 - Step 4: Simplify right side
293,257.40x = 112,974,868,197.06 - Step 5: Solve for x
x = 112,974,868,197.06/293,257.40 - Step 6: Final answer
x = 385,241.32
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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.