Finding the Fourth Proportional to 299,703.51, 447,369.05 and 261,869.09
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Solution
The fourth proportional to 299,703.51, 447,369.05 and 261,869.09 is: 390,893.39
Step by Step Solution
- Step 1: Write the proportion equation
299,703.51 : 447,369.05 = 261,869.09 : x - Step 2: Convert to fraction form
299,703.51/447,369.05 = 261,869.09/x - Step 3: Cross multiply
299,703.51x = 447,369.05 × 261,869.09 - Step 4: Simplify right side
299,703.51x = 117,152,122,471.47 - Step 5: Solve for x
x = 117,152,122,471.47/299,703.51 - Step 6: Final answer
x = 390,893.39
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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.