Finding the Fourth Proportional to 266,117.80, 399,176.70 and 261,743.80
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Solution
The fourth proportional to 266,117.80, 399,176.70 and 261,743.80 is: 392,615.70
Step by Step Solution
- Step 1: Write the proportion equation
266,117.80 : 399,176.70 = 261,743.80 : x - Step 2: Convert to fraction form
266,117.80/399,176.70 = 261,743.80/x - Step 3: Cross multiply
266,117.80x = 399,176.70 × 261,743.80 - Step 4: Simplify right side
266,117.80x = 104,482,026,329.46 - Step 5: Solve for x
x = 104,482,026,329.46/266,117.80 - Step 6: Final answer
x = 392,615.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.