Finding the Fourth Proportional to 430,655.92, 645,984.08 and 193,721.79
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Solution
The fourth proportional to 430,655.92, 645,984.08 and 193,721.79 is: 290,582.77
Step by Step Solution
- Step 1: Write the proportion equation
430,655.92 : 645,984.08 = 193,721.79 : x - Step 2: Convert to fraction form
430,655.92/645,984.08 = 193,721.79/x - Step 3: Cross multiply
430,655.92x = 645,984.08 × 193,721.79 - Step 4: Simplify right side
430,655.92x = 125,141,189,543.49 - Step 5: Solve for x
x = 125,141,189,543.49/430,655.92 - Step 6: Final answer
x = 290,582.77
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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.