Finding the Fourth Proportional to 155,282.36, 214,288.35 and 87,299.63
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Solution
The fourth proportional to 155,282.36, 214,288.35 and 87,299.63 is: 120,472.75
Step by Step Solution
- Step 1: Write the proportion equation
155,282.36 : 214,288.35 = 87,299.63 : x - Step 2: Convert to fraction form
155,282.36/214,288.35 = 87,299.63/x - Step 3: Cross multiply
155,282.36x = 214,288.35 × 87,299.63 - Step 4: Simplify right side
155,282.36x = 18,707,292,596.87 - Step 5: Solve for x
x = 18,707,292,596.87/155,282.36 - Step 6: Final answer
x = 120,472.75
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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.