Finding the Fourth Proportional to 430,108.81, 645,118.94 and 130,577.29
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Solution
The fourth proportional to 430,108.81, 645,118.94 and 130,577.29 is: 195,852.49
Step by Step Solution
- Step 1: Write the proportion equation
430,108.81 : 645,118.94 = 130,577.29 : x - Step 2: Convert to fraction form
430,108.81/645,118.94 = 130,577.29/x - Step 3: Cross multiply
430,108.81x = 645,118.94 × 130,577.29 - Step 4: Simplify right side
430,108.81x = 84,237,882,259.99 - Step 5: Solve for x
x = 84,237,882,259.99/430,108.81 - Step 6: Final answer
x = 195,852.49
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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.