Finding the Fourth Proportional to 387,080.63, 534,204.95 and 215,032.06
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Solution
The fourth proportional to 387,080.63, 534,204.95 and 215,032.06 is: 296,762.95
Step by Step Solution
- Step 1: Write the proportion equation
387,080.63 : 534,204.95 = 215,032.06 : x - Step 2: Convert to fraction form
387,080.63/534,204.95 = 215,032.06/x - Step 3: Cross multiply
387,080.63x = 534,204.95 × 215,032.06 - Step 4: Simplify right side
387,080.63x = 114,871,190,860.70 - Step 5: Solve for x
x = 114,871,190,860.70/387,080.63 - Step 6: Final answer
x = 296,762.95
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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.