Finding the Fourth Proportional to 406,340.16, 560,718.90 and 234,135.78
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Solution
The fourth proportional to 406,340.16, 560,718.90 and 234,135.78 is: 323,089.79
Step by Step Solution
- Step 1: Write the proportion equation
406,340.16 : 560,718.90 = 234,135.78 : x - Step 2: Convert to fraction form
406,340.16/560,718.90 = 234,135.78/x - Step 3: Cross multiply
406,340.16x = 560,718.90 × 234,135.78 - Step 4: Simplify right side
406,340.16x = 131,284,357,012.24 - Step 5: Solve for x
x = 131,284,357,012.24/406,340.16 - Step 6: Final answer
x = 323,089.79
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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.