Finding the Fourth Proportional to 257,853.62, 355,832.36 and 143,125.52
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Solution
The fourth proportional to 257,853.62, 355,832.36 and 143,125.52 is: 197,510.09
Step by Step Solution
- Step 1: Write the proportion equation
257,853.62 : 355,832.36 = 143,125.52 : x - Step 2: Convert to fraction form
257,853.62/355,832.36 = 143,125.52/x - Step 3: Cross multiply
257,853.62x = 355,832.36 × 143,125.52 - Step 4: Simplify right side
257,853.62x = 50,928,691,557.83 - Step 5: Solve for x
x = 50,928,691,557.83/257,853.62 - Step 6: Final answer
x = 197,510.09
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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.