Finding the Fourth Proportional to 144,491.21, 216,644.50 and 69,462.06
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Solution
The fourth proportional to 144,491.21, 216,644.50 and 69,462.06 is: 104,148.71
Step by Step Solution
- Step 1: Write the proportion equation
144,491.21 : 216,644.50 = 69,462.06 : x - Step 2: Convert to fraction form
144,491.21/216,644.50 = 69,462.06/x - Step 3: Cross multiply
144,491.21x = 216,644.50 × 69,462.06 - Step 4: Simplify right side
144,491.21x = 15,048,572,910.36 - Step 5: Solve for x
x = 15,048,572,910.36/144,491.21 - Step 6: Final answer
x = 104,148.71
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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.