Finding the Fourth Proportional to 330,117.09, 455,563.47 and 194,156.76
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Solution
The fourth proportional to 330,117.09, 455,563.47 and 194,156.76 is: 267,937.45
Step by Step Solution
- Step 1: Write the proportion equation
330,117.09 : 455,563.47 = 194,156.76 : x - Step 2: Convert to fraction form
330,117.09/455,563.47 = 194,156.76/x - Step 3: Cross multiply
330,117.09x = 455,563.47 × 194,156.76 - Step 4: Simplify right side
330,117.09x = 88,450,729,746.01 - Step 5: Solve for x
x = 88,450,729,746.01/330,117.09 - Step 6: Final answer
x = 267,937.45
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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.