Finding the Fourth Proportional to 257,982.32, 355,999.73 and 143,253.99
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Solution
The fourth proportional to 257,982.32, 355,999.73 and 143,253.99 is: 197,681.69
Step by Step Solution
- Step 1: Write the proportion equation
257,982.32 : 355,999.73 = 143,253.99 : x - Step 2: Convert to fraction form
257,982.32/355,999.73 = 143,253.99/x - Step 3: Cross multiply
257,982.32x = 355,999.73 × 143,253.99 - Step 4: Simplify right side
257,982.32x = 50,998,381,045.15 - Step 5: Solve for x
x = 50,998,381,045.15/257,982.32 - Step 6: Final answer
x = 197,681.69
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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.