Finding the Fourth Proportional to 307,430.49, 461,211.39 and 107,763.06
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Solution
The fourth proportional to 307,430.49, 461,211.39 and 107,763.06 is: 161,667.60
Step by Step Solution
- Step 1: Write the proportion equation
307,430.49 : 461,211.39 = 107,763.06 : x - Step 2: Convert to fraction form
307,430.49/461,211.39 = 107,763.06/x - Step 3: Cross multiply
307,430.49x = 461,211.39 × 107,763.06 - Step 4: Simplify right side
307,430.49x = 49,701,550,693.25 - Step 5: Solve for x
x = 49,701,550,693.25/307,430.49 - Step 6: Final answer
x = 161,667.60
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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.