Finding the Fourth Proportional to 268,642.65, 370,724.16 and 147,784.08
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Solution
The fourth proportional to 268,642.65, 370,724.16 and 147,784.08 is: 203,940.55
Step by Step Solution
- Step 1: Write the proportion equation
268,642.65 : 370,724.16 = 147,784.08 : x - Step 2: Convert to fraction form
268,642.65/370,724.16 = 147,784.08/x - Step 3: Cross multiply
268,642.65x = 370,724.16 × 147,784.08 - Step 4: Simplify right side
268,642.65x = 54,787,128,919.37 - Step 5: Solve for x
x = 54,787,128,919.37/268,642.65 - Step 6: Final answer
x = 203,940.55
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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.