Finding the Fourth Proportional to 172,421.15, 258,779.34 and 97,614.81
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Solution
The fourth proportional to 172,421.15, 258,779.34 and 97,614.81 is: 146,505.79
Step by Step Solution
- Step 1: Write the proportion equation
172,421.15 : 258,779.34 = 97,614.81 : x - Step 2: Convert to fraction form
172,421.15/258,779.34 = 97,614.81/x - Step 3: Cross multiply
172,421.15x = 258,779.34 × 97,614.81 - Step 4: Simplify right side
172,421.15x = 25,260,696,106.03 - Step 5: Solve for x
x = 25,260,696,106.03/172,421.15 - Step 6: Final answer
x = 146,505.79
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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.