Finding the Fourth Proportional to 266,614.81, 399,878.84 and 89,121.53
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Solution
The fourth proportional to 266,614.81, 399,878.84 and 89,121.53 is: 133,667.80
Step by Step Solution
- Step 1: Write the proportion equation
266,614.81 : 399,878.84 = 89,121.53 : x - Step 2: Convert to fraction form
266,614.81/399,878.84 = 89,121.53/x - Step 3: Cross multiply
266,614.81x = 399,878.84 × 89,121.53 - Step 4: Simplify right side
266,614.81x = 35,637,815,257.93 - Step 5: Solve for x
x = 35,637,815,257.93/266,614.81 - Step 6: Final answer
x = 133,667.80
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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.