Finding the Fourth Proportional to 372,122.64, 513,542.76 and 213,177.36
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Solution
The fourth proportional to 372,122.64, 513,542.76 and 213,177.36 is: 294,192.50
Step by Step Solution
- Step 1: Write the proportion equation
372,122.64 : 513,542.76 = 213,177.36 : x - Step 2: Convert to fraction form
372,122.64/513,542.76 = 213,177.36/x - Step 3: Cross multiply
372,122.64x = 513,542.76 × 213,177.36 - Step 4: Simplify right side
372,122.64x = 109,475,689,823.91 - Step 5: Solve for x
x = 109,475,689,823.91/372,122.64 - Step 6: Final answer
x = 294,192.50
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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.