Finding the Fourth Proportional to 371,909.44, 513,235.74 and 202,143.16
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Solution
The fourth proportional to 371,909.44, 513,235.74 and 202,143.16 is: 278,957.95
Step by Step Solution
- Step 1: Write the proportion equation
371,909.44 : 513,235.74 = 202,143.16 : x - Step 2: Convert to fraction form
371,909.44/513,235.74 = 202,143.16/x - Step 3: Cross multiply
371,909.44x = 513,235.74 × 202,143.16 - Step 4: Simplify right side
371,909.44x = 103,747,094,308.54 - Step 5: Solve for x
x = 103,747,094,308.54/371,909.44 - Step 6: Final answer
x = 278,957.95
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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.