Finding the Fourth Proportional to 430,596.96, 645,928.40 and 131,103.08
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Solution
The fourth proportional to 430,596.96, 645,928.40 and 131,103.08 is: 196,664.66
Step by Step Solution
- Step 1: Write the proportion equation
430,596.96 : 645,928.40 = 131,103.08 : x - Step 2: Convert to fraction form
430,596.96/645,928.40 = 131,103.08/x - Step 3: Cross multiply
430,596.96x = 645,928.40 × 131,103.08 - Step 4: Simplify right side
430,596.96x = 84,683,202,699.47 - Step 5: Solve for x
x = 84,683,202,699.47/430,596.96 - Step 6: Final answer
x = 196,664.66
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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.