Finding the Fourth Proportional to 256,725.24, 384,923.84 and 123,340.12
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Solution
The fourth proportional to 256,725.24, 384,923.84 and 123,340.12 is: 184,931.38
Step by Step Solution
- Step 1: Write the proportion equation
256,725.24 : 384,923.84 = 123,340.12 : x - Step 2: Convert to fraction form
256,725.24/384,923.84 = 123,340.12/x - Step 3: Cross multiply
256,725.24x = 384,923.84 × 123,340.12 - Step 4: Simplify right side
256,725.24x = 47,476,552,616.46 - Step 5: Solve for x
x = 47,476,552,616.46/256,725.24 - Step 6: Final answer
x = 184,931.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.