Finding the Fourth Proportional to 365,309.84, 548,009.04 and 128,604.08
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Solution
The fourth proportional to 365,309.84, 548,009.04 and 128,604.08 is: 192,921.71
Step by Step Solution
- Step 1: Write the proportion equation
365,309.84 : 548,009.04 = 128,604.08 : x - Step 2: Convert to fraction form
365,309.84/548,009.04 = 128,604.08/x - Step 3: Cross multiply
365,309.84x = 548,009.04 × 128,604.08 - Step 4: Simplify right side
365,309.84x = 70,476,198,420.88 - Step 5: Solve for x
x = 70,476,198,420.88/365,309.84 - Step 6: Final answer
x = 192,921.71
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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.