Finding the Fourth Proportional to 257,638.93, 355,529.22 and 142,922.14
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Solution
The fourth proportional to 257,638.93, 355,529.22 and 142,922.14 is: 197,225.61
Step by Step Solution
- Step 1: Write the proportion equation
257,638.93 : 355,529.22 = 142,922.14 : x - Step 2: Convert to fraction form
257,638.93/355,529.22 = 142,922.14/x - Step 3: Cross multiply
257,638.93x = 355,529.22 × 142,922.14 - Step 4: Simplify right side
257,638.93x = 50,812,995,530.15 - Step 5: Solve for x
x = 50,812,995,530.15/257,638.93 - Step 6: Final answer
x = 197,225.61
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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.