Finding the Fourth Proportional to 187,258.28, 280,958.12 and 112,430.58
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Solution
The fourth proportional to 187,258.28, 280,958.12 and 112,430.58 is: 168,688.32
Step by Step Solution
- Step 1: Write the proportion equation
187,258.28 : 280,958.12 = 112,430.58 : x - Step 2: Convert to fraction form
187,258.28/280,958.12 = 112,430.58/x - Step 3: Cross multiply
187,258.28x = 280,958.12 × 112,430.58 - Step 4: Simplify right side
187,258.28x = 31,588,283,193.18 - Step 5: Solve for x
x = 31,588,283,193.18/187,258.28 - Step 6: Final answer
x = 168,688.32
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1.5x scale
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.