Finding the Fourth Proportional to 430,357.68, 645,571.08 and 130,865.04
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Solution
The fourth proportional to 430,357.68, 645,571.08 and 130,865.04 is: 196,308.07
Step by Step Solution
- Step 1: Write the proportion equation
430,357.68 : 645,571.08 = 130,865.04 : x - Step 2: Convert to fraction form
430,357.68/645,571.08 = 130,865.04/x - Step 3: Cross multiply
430,357.68x = 645,571.08 × 130,865.04 - Step 4: Simplify right side
430,357.68x = 84,482,685,207.04 - Step 5: Solve for x
x = 84,482,685,207.04/430,357.68 - Step 6: Final answer
x = 196,308.07
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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.