Finding the Fourth Proportional to 409,649.28, 614,051.70 and 156,860.70
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Solution
The fourth proportional to 409,649.28, 614,051.70 and 156,860.70 is: 235,129.38
Step by Step Solution
- Step 1: Write the proportion equation
409,649.28 : 614,051.70 = 156,860.70 : x - Step 2: Convert to fraction form
409,649.28/614,051.70 = 156,860.70/x - Step 3: Cross multiply
409,649.28x = 614,051.70 × 156,860.70 - Step 4: Simplify right side
409,649.28x = 96,320,579,498.19 - Step 5: Solve for x
x = 96,320,579,498.19/409,649.28 - Step 6: Final answer
x = 235,129.38
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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.