Finding the Fourth Proportional to 409,525.12, 614,289.05 and 125,214.60
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Solution
The fourth proportional to 409,525.12, 614,289.05 and 125,214.60 is: 187,822.32
Step by Step Solution
- Step 1: Write the proportion equation
409,525.12 : 614,289.05 = 125,214.60 : x - Step 2: Convert to fraction form
409,525.12/614,289.05 = 125,214.60/x - Step 3: Cross multiply
409,525.12x = 614,289.05 × 125,214.60 - Step 4: Simplify right side
409,525.12x = 76,917,957,680.13 - Step 5: Solve for x
x = 76,917,957,680.13/409,525.12 - Step 6: Final answer
x = 187,822.32
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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.