Finding the Fourth Proportional to 434,132.68, 651,421.14 and 206,685.45
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Solution
The fourth proportional to 434,132.68, 651,421.14 and 206,685.45 is: 310,133.92
Step by Step Solution
- Step 1: Write the proportion equation
434,132.68 : 651,421.14 = 206,685.45 : x - Step 2: Convert to fraction form
434,132.68/651,421.14 = 206,685.45/x - Step 3: Cross multiply
434,132.68x = 651,421.14 × 206,685.45 - Step 4: Simplify right side
434,132.68x = 134,639,268,203.31 - Step 5: Solve for x
x = 134,639,268,203.31/434,132.68 - Step 6: Final answer
x = 310,133.92
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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.