Finding the Fourth Proportional to 143,281.09, 214,865.33 and 48,485.17
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Solution
The fourth proportional to 143,281.09, 214,865.33 and 48,485.17 is: 72,708.70
Step by Step Solution
- Step 1: Write the proportion equation
143,281.09 : 214,865.33 = 48,485.17 : x - Step 2: Convert to fraction form
143,281.09/214,865.33 = 48,485.17/x - Step 3: Cross multiply
143,281.09x = 214,865.33 × 48,485.17 - Step 4: Simplify right side
143,281.09x = 10,417,782,052.16 - Step 5: Solve for x
x = 10,417,782,052.16/143,281.09 - Step 6: Final answer
x = 72,708.70
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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.