Finding the Fourth Proportional to 248,506.99, 342,840.95 and 143,711.57
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Solution
The fourth proportional to 248,506.99, 342,840.95 and 143,711.57 is: 198,264.89
Step by Step Solution
- Step 1: Write the proportion equation
248,506.99 : 342,840.95 = 143,711.57 : x - Step 2: Convert to fraction form
248,506.99/342,840.95 = 143,711.57/x - Step 3: Cross multiply
248,506.99x = 342,840.95 × 143,711.57 - Step 4: Simplify right side
248,506.99x = 49,270,210,742.15 - Step 5: Solve for x
x = 49,270,210,742.15/248,506.99 - Step 6: Final answer
x = 198,264.89
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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.