Finding the Fourth Proportional to 157,197.22, 216,451.74 and 118,491.28
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Solution
The fourth proportional to 157,197.22, 216,451.74 and 118,491.28 is: 163,155.84
Step by Step Solution
- Step 1: Write the proportion equation
157,197.22 : 216,451.74 = 118,491.28 : x - Step 2: Convert to fraction form
157,197.22/216,451.74 = 118,491.28/x - Step 3: Cross multiply
157,197.22x = 216,451.74 × 118,491.28 - Step 4: Simplify right side
157,197.22x = 25,647,643,730.83 - Step 5: Solve for x
x = 25,647,643,730.83/157,197.22 - Step 6: Final answer
x = 163,155.84
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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.