Finding the Fourth Proportional to 430,140.26, 645,211.41 and 130,623.09
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Solution
The fourth proportional to 430,140.26, 645,211.41 and 130,623.09 is: 195,934.95
Step by Step Solution
- Step 1: Write the proportion equation
430,140.26 : 645,211.41 = 130,623.09 : x - Step 2: Convert to fraction form
430,140.26/645,211.41 = 130,623.09/x - Step 3: Cross multiply
430,140.26x = 645,211.41 × 130,623.09 - Step 4: Simplify right side
430,140.26x = 84,279,508,077.46 - Step 5: Solve for x
x = 84,279,508,077.46/430,140.26 - Step 6: Final answer
x = 195,934.95
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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.