Finding the Fourth Proportional to 219,649.12, 303,113.52 and 122,851.92
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Solution
The fourth proportional to 219,649.12, 303,113.52 and 122,851.92 is: 169,534.38
Step by Step Solution
- Step 1: Write the proportion equation
219,649.12 : 303,113.52 = 122,851.92 : x - Step 2: Convert to fraction form
219,649.12/303,113.52 = 122,851.92/x - Step 3: Cross multiply
219,649.12x = 303,113.52 × 122,851.92 - Step 4: Simplify right side
219,649.12x = 37,238,077,909.96 - Step 5: Solve for x
x = 37,238,077,909.96/219,649.12 - Step 6: Final answer
x = 169,534.38
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1.5x scale
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.