Finding the Fourth Proportional to 371,964.40, 513,315.98 and 202,202.17
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Solution
The fourth proportional to 371,964.40, 513,315.98 and 202,202.17 is: 279,041.77
Step by Step Solution
- Step 1: Write the proportion equation
371,964.40 : 513,315.98 = 202,202.17 : x - Step 2: Convert to fraction form
371,964.40/513,315.98 = 202,202.17/x - Step 3: Cross multiply
371,964.40x = 513,315.98 × 202,202.17 - Step 4: Simplify right side
371,964.40x = 103,793,604,040.67 - Step 5: Solve for x
x = 103,793,604,040.67/371,964.40 - Step 6: Final answer
x = 279,041.77
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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.