Finding the Fourth Proportional to 231,500.15, 348,985.36 and 216,068.99
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Solution
The fourth proportional to 231,500.15, 348,985.36 and 216,068.99 is: 325,722.96
Step by Step Solution
- Step 1: Write the proportion equation
231,500.15 : 348,985.36 = 216,068.99 : x - Step 2: Convert to fraction form
231,500.15/348,985.36 = 216,068.99/x - Step 3: Cross multiply
231,500.15x = 348,985.36 × 216,068.99 - Step 4: Simplify right side
231,500.15x = 75,404,914,259.99 - Step 5: Solve for x
x = 75,404,914,259.99/231,500.15 - Step 6: Final answer
x = 325,722.96
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.