Finding the Fourth Proportional to 299,671.41, 449,356.64 and 99,921.09
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Solution
The fourth proportional to 299,671.41, 449,356.64 and 99,921.09 is: 149,831.46
Step by Step Solution
- Step 1: Write the proportion equation
299,671.41 : 449,356.64 = 99,921.09 : x - Step 2: Convert to fraction form
299,671.41/449,356.64 = 99,921.09/x - Step 3: Cross multiply
299,671.41x = 449,356.64 × 99,921.09 - Step 4: Simplify right side
299,671.41x = 44,900,204,767.93 - Step 5: Solve for x
x = 44,900,204,767.93/299,671.41 - Step 6: Final answer
x = 149,831.46
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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.