Finding the Fourth Proportional to 257,949.09, 355,970.48 and 143,227.98
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Solution
The fourth proportional to 257,949.09, 355,970.48 and 143,227.98 is: 197,655.02
Step by Step Solution
- Step 1: Write the proportion equation
257,949.09 : 355,970.48 = 143,227.98 : x - Step 2: Convert to fraction form
257,949.09/355,970.48 = 143,227.98/x - Step 3: Cross multiply
257,949.09x = 355,970.48 × 143,227.98 - Step 4: Simplify right side
257,949.09x = 50,984,932,073.89 - Step 5: Solve for x
x = 50,984,932,073.89/257,949.09 - Step 6: Final answer
x = 197,655.02
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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.