Finding the Fourth Proportional to 185,925.45, 256,571.79 and 105,378.99
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Solution
The fourth proportional to 185,925.45, 256,571.79 and 105,378.99 is: 145,419.98
Step by Step Solution
- Step 1: Write the proportion equation
185,925.45 : 256,571.79 = 105,378.99 : x - Step 2: Convert to fraction form
185,925.45/256,571.79 = 105,378.99/x - Step 3: Cross multiply
185,925.45x = 256,571.79 × 105,378.99 - Step 4: Simplify right side
185,925.45x = 27,037,276,092.69 - Step 5: Solve for x
x = 27,037,276,092.69/185,925.45 - Step 6: Final answer
x = 145,419.98
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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.