Finding the Fourth Proportional to 258,900.09, 357,259.37 and 144,170.07
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Solution
The fourth proportional to 258,900.09, 357,259.37 and 144,170.07 is: 198,942.03
Step by Step Solution
- Step 1: Write the proportion equation
258,900.09 : 357,259.37 = 144,170.07 : x - Step 2: Convert to fraction form
258,900.09/357,259.37 = 144,170.07/x - Step 3: Cross multiply
258,900.09x = 357,259.37 × 144,170.07 - Step 4: Simplify right side
258,900.09x = 51,506,108,381.06 - Step 5: Solve for x
x = 51,506,108,381.06/258,900.09 - Step 6: Final answer
x = 198,942.03
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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.