Finding the Fourth Proportional to 299,726.42, 447,403.06 and 261,891.98
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Solution
The fourth proportional to 299,726.42, 447,403.06 and 261,891.98 is: 390,927.41
Step by Step Solution
- Step 1: Write the proportion equation
299,726.42 : 447,403.06 = 261,891.98 : x - Step 2: Convert to fraction form
299,726.42/447,403.06 = 261,891.98/x - Step 3: Cross multiply
299,726.42x = 447,403.06 × 261,891.98 - Step 4: Simplify right side
299,726.42x = 117,171,273,241.46 - Step 5: Solve for x
x = 117,171,273,241.46/299,726.42 - Step 6: Final answer
x = 390,927.41
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.