Finding the Fourth Proportional to 430,233.96, 645,385.08 and 130,740.68
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Solution
The fourth proportional to 430,233.96, 645,385.08 and 130,740.68 is: 196,121.39
Step by Step Solution
- Step 1: Write the proportion equation
430,233.96 : 645,385.08 = 130,740.68 : x - Step 2: Convert to fraction form
430,233.96/645,385.08 = 130,740.68/x - Step 3: Cross multiply
430,233.96x = 645,385.08 × 130,740.68 - Step 4: Simplify right side
430,233.96x = 84,378,084,221.05 - Step 5: Solve for x
x = 84,378,084,221.05/430,233.96 - Step 6: Final answer
x = 196,121.39
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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.