Finding the Fourth Proportional to 257,842.18, 355,816.70 and 143,114.14
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Solution
The fourth proportional to 257,842.18, 355,816.70 and 143,114.14 is: 197,494.46
Step by Step Solution
- Step 1: Write the proportion equation
257,842.18 : 355,816.70 = 143,114.14 : x - Step 2: Convert to fraction form
257,842.18/355,816.70 = 143,114.14/x - Step 3: Cross multiply
257,842.18x = 355,816.70 × 143,114.14 - Step 4: Simplify right side
257,842.18x = 50,922,401,018.14 - Step 5: Solve for x
x = 50,922,401,018.14/257,842.18 - Step 6: Final answer
x = 197,494.46
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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.