Finding the Fourth Proportional to 313,755.36, 432,985.12 and 170,515.44
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Solution
The fourth proportional to 313,755.36, 432,985.12 and 170,515.44 is: 235,312.79
Step by Step Solution
- Step 1: Write the proportion equation
313,755.36 : 432,985.12 = 170,515.44 : x - Step 2: Convert to fraction form
313,755.36/432,985.12 = 170,515.44/x - Step 3: Cross multiply
313,755.36x = 432,985.12 × 170,515.44 - Step 4: Simplify right side
313,755.36x = 73,830,648,250.25 - Step 5: Solve for x
x = 73,830,648,250.25/313,755.36 - Step 6: Final answer
x = 235,312.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.