Finding the Fourth Proportional to 372,220.16, 513,617.20 and 251,623.84
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Solution
The fourth proportional to 372,220.16, 513,617.20 and 251,623.84 is: 347,209.38
Step by Step Solution
- Step 1: Write the proportion equation
372,220.16 : 513,617.20 = 251,623.84 : x - Step 2: Convert to fraction form
372,220.16/513,617.20 = 251,623.84/x - Step 3: Cross multiply
372,220.16x = 513,617.20 × 251,623.84 - Step 4: Simplify right side
372,220.16x = 129,238,332,154.05 - Step 5: Solve for x
x = 129,238,332,154.05/372,220.16 - Step 6: Final answer
x = 347,209.38
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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.