Finding the Fourth Proportional to 257,953.23, 355,968.36 and 154,645.83
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Solution
The fourth proportional to 257,953.23, 355,968.36 and 154,645.83 is: 213,406.99
Step by Step Solution
- Step 1: Write the proportion equation
257,953.23 : 355,968.36 = 154,645.83 : x - Step 2: Convert to fraction form
257,953.23/355,968.36 = 154,645.83/x - Step 3: Cross multiply
257,953.23x = 355,968.36 × 154,645.83 - Step 4: Simplify right side
257,953.23x = 55,049,022,485.94 - Step 5: Solve for x
x = 55,049,022,485.94/257,953.23 - Step 6: Final answer
x = 213,406.99
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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.