Finding the Fourth Proportional to 276,827.46, 382,021.80 and 149,503.08
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Solution
The fourth proportional to 276,827.46, 382,021.80 and 149,503.08 is: 206,314.20
Step by Step Solution
- Step 1: Write the proportion equation
276,827.46 : 382,021.80 = 149,503.08 : x - Step 2: Convert to fraction form
276,827.46/382,021.80 = 149,503.08/x - Step 3: Cross multiply
276,827.46x = 382,021.80 × 149,503.08 - Step 4: Simplify right side
276,827.46x = 57,113,435,727.14 - Step 5: Solve for x
x = 57,113,435,727.14/276,827.46 - Step 6: Final answer
x = 206,314.20
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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.