Finding the Fourth Proportional to 155,974.24, 215,145.36 and 102,262.76
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Solution
The fourth proportional to 155,974.24, 215,145.36 and 102,262.76 is: 141,057.64
Step by Step Solution
- Step 1: Write the proportion equation
155,974.24 : 215,145.36 = 102,262.76 : x - Step 2: Convert to fraction form
155,974.24/215,145.36 = 102,262.76/x - Step 3: Cross multiply
155,974.24x = 215,145.36 × 102,262.76 - Step 4: Simplify right side
155,974.24x = 22,001,358,314.79 - Step 5: Solve for x
x = 22,001,358,314.79/155,974.24 - Step 6: Final answer
x = 141,057.64
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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.