Finding the Fourth Proportional to 251,747.70, 377,621.55 and 145,313.70
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Solution
The fourth proportional to 251,747.70, 377,621.55 and 145,313.70 is: 217,970.55
Step by Step Solution
- Step 1: Write the proportion equation
251,747.70 : 377,621.55 = 145,313.70 : x - Step 2: Convert to fraction form
251,747.70/377,621.55 = 145,313.70/x - Step 3: Cross multiply
251,747.70x = 377,621.55 × 145,313.70 - Step 4: Simplify right side
251,747.70x = 54,873,584,630.24 - Step 5: Solve for x
x = 54,873,584,630.24/251,747.70 - Step 6: Final answer
x = 217,970.55
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1.5x scale
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.