Finding the Fourth Proportional to 430,735.40, 645,749.82 and 194,007.08
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Solution
The fourth proportional to 430,735.40, 645,749.82 and 194,007.08 is: 290,851.50
Step by Step Solution
- Step 1: Write the proportion equation
430,735.40 : 645,749.82 = 194,007.08 : x - Step 2: Convert to fraction form
430,735.40/645,749.82 = 194,007.08/x - Step 3: Cross multiply
430,735.40x = 645,749.82 × 194,007.08 - Step 4: Simplify right side
430,735.40x = 125,280,036,988.73 - Step 5: Solve for x
x = 125,280,036,988.73/430,735.40 - Step 6: Final answer
x = 290,851.50
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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.