Finding the Fourth Proportional to 257,193.96, 354,919.64 and 142,467.99
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Solution
The fourth proportional to 257,193.96, 354,919.64 and 142,467.99 is: 196,601.38
Step by Step Solution
- Step 1: Write the proportion equation
257,193.96 : 354,919.64 = 142,467.99 : x - Step 2: Convert to fraction form
257,193.96/354,919.64 = 142,467.99/x - Step 3: Cross multiply
257,193.96x = 354,919.64 × 142,467.99 - Step 4: Simplify right side
257,193.96x = 50,564,687,009.98 - Step 5: Solve for x
x = 50,564,687,009.98/257,193.96 - Step 6: Final answer
x = 196,601.38
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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.