Finding the Fourth Proportional to 187,271.36, 258,459.36 and 120,397.76
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Solution
The fourth proportional to 187,271.36, 258,459.36 and 120,397.76 is: 166,164.91
Step by Step Solution
- Step 1: Write the proportion equation
187,271.36 : 258,459.36 = 120,397.76 : x - Step 2: Convert to fraction form
187,271.36/258,459.36 = 120,397.76/x - Step 3: Cross multiply
187,271.36x = 258,459.36 × 120,397.76 - Step 4: Simplify right side
187,271.36x = 31,117,927,995.03 - Step 5: Solve for x
x = 31,117,927,995.03/187,271.36 - Step 6: Final answer
x = 166,164.91
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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.