Finding the Fourth Proportional to 293,625.80, 440,438.70 and 153,657.80
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Solution
The fourth proportional to 293,625.80, 440,438.70 and 153,657.80 is: 230,486.70
Step by Step Solution
- Step 1: Write the proportion equation
293,625.80 : 440,438.70 = 153,657.80 : x - Step 2: Convert to fraction form
293,625.80/440,438.70 = 153,657.80/x - Step 3: Cross multiply
293,625.80x = 440,438.70 × 153,657.80 - Step 4: Simplify right side
293,625.80x = 67,676,841,676.86 - Step 5: Solve for x
x = 67,676,841,676.86/293,625.80 - Step 6: Final answer
x = 230,486.70
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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.