Finding the Fourth Proportional to 430,282.53, 645,423.66 and 130,762.08
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Solution
The fourth proportional to 430,282.53, 645,423.66 and 130,762.08 is: 196,143.08
Step by Step Solution
- Step 1: Write the proportion equation
430,282.53 : 645,423.66 = 130,762.08 : x - Step 2: Convert to fraction form
430,282.53/645,423.66 = 130,762.08/x - Step 3: Cross multiply
430,282.53x = 645,423.66 × 130,762.08 - Step 4: Simplify right side
430,282.53x = 84,396,940,262.81 - Step 5: Solve for x
x = 84,396,940,262.81/430,282.53 - Step 6: Final answer
x = 196,143.08
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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.