Finding the Fourth Proportional to 239,245.86, 330,166.74 and 137,289.99
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Solution
The fourth proportional to 239,245.86, 330,166.74 and 137,289.99 is: 189,464.46
Step by Step Solution
- Step 1: Write the proportion equation
239,245.86 : 330,166.74 = 137,289.99 : x - Step 2: Convert to fraction form
239,245.86/330,166.74 = 137,289.99/x - Step 3: Cross multiply
239,245.86x = 330,166.74 × 137,289.99 - Step 4: Simplify right side
239,245.86x = 45,328,588,432.93 - Step 5: Solve for x
x = 45,328,588,432.93/239,245.86 - Step 6: Final answer
x = 189,464.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.