Finding the Fourth Proportional to 285,263.08, 427,876.70 and 74,896.36
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Solution
The fourth proportional to 285,263.08, 427,876.70 and 74,896.36 is: 112,339.84
Step by Step Solution
- Step 1: Write the proportion equation
285,263.08 : 427,876.70 = 74,896.36 : x - Step 2: Convert to fraction form
285,263.08/427,876.70 = 74,896.36/x - Step 3: Cross multiply
285,263.08x = 427,876.70 × 74,896.36 - Step 4: Simplify right side
285,263.08x = 32,046,407,358.81 - Step 5: Solve for x
x = 32,046,407,358.81/285,263.08 - Step 6: Final answer
x = 112,339.84
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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.