Finding the Fourth Proportional to 203,430.74, 280,750.98 and 112,815.10
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Solution
The fourth proportional to 203,430.74, 280,750.98 and 112,815.10 is: 155,694.02
Step by Step Solution
- Step 1: Write the proportion equation
203,430.74 : 280,750.98 = 112,815.10 : x - Step 2: Convert to fraction form
203,430.74/280,750.98 = 112,815.10/x - Step 3: Cross multiply
203,430.74x = 280,750.98 × 112,815.10 - Step 4: Simplify right side
203,430.74x = 31,672,949,883.80 - Step 5: Solve for x
x = 31,672,949,883.80/203,430.74 - Step 6: Final answer
x = 155,694.02
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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.