Finding the Fourth Proportional to 347,212.76, 520,727.99 and 147,430.31
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Solution
The fourth proportional to 347,212.76, 520,727.99 and 147,430.31 is: 221,106.76
Step by Step Solution
- Step 1: Write the proportion equation
347,212.76 : 520,727.99 = 147,430.31 : x - Step 2: Convert to fraction form
347,212.76/520,727.99 = 147,430.31/x - Step 3: Cross multiply
347,212.76x = 520,727.99 × 147,430.31 - Step 4: Simplify right side
347,212.76x = 76,771,089,556.05 - Step 5: Solve for x
x = 76,771,089,556.05/347,212.76 - Step 6: Final answer
x = 221,106.76
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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.