Finding the Fourth Proportional to 492,310.79, 738,400.57 and 137,295.08
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Solution
The fourth proportional to 492,310.79, 738,400.57 and 137,295.08 is: 205,924.32
Step by Step Solution
- Step 1: Write the proportion equation
492,310.79 : 738,400.57 = 137,295.08 : x - Step 2: Convert to fraction form
492,310.79/738,400.57 = 137,295.08/x - Step 3: Cross multiply
492,310.79x = 738,400.57 × 137,295.08 - Step 4: Simplify right side
492,310.79x = 101,378,765,330.20 - Step 5: Solve for x
x = 101,378,765,330.20/492,310.79 - Step 6: Final answer
x = 205,924.32
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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.