Finding the Fourth Proportional to 172,232.19, 258,259.73 and 77,381.08
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Solution
The fourth proportional to 172,232.19, 258,259.73 and 77,381.08 is: 116,031.83
Step by Step Solution
- Step 1: Write the proportion equation
172,232.19 : 258,259.73 = 77,381.08 : x - Step 2: Convert to fraction form
172,232.19/258,259.73 = 77,381.08/x - Step 3: Cross multiply
172,232.19x = 258,259.73 × 77,381.08 - Step 4: Simplify right side
172,232.19x = 19,984,415,795.35 - Step 5: Solve for x
x = 19,984,415,795.35/172,232.19 - Step 6: Final answer
x = 116,031.83
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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.