Finding the Fourth Proportional to 290,005.93, 435,008.08 and 79,644.07
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Solution
The fourth proportional to 290,005.93, 435,008.08 and 79,644.07 is: 119,465.88
Step by Step Solution
- Step 1: Write the proportion equation
290,005.93 : 435,008.08 = 79,644.07 : x - Step 2: Convert to fraction form
290,005.93/435,008.08 = 79,644.07/x - Step 3: Cross multiply
290,005.93x = 435,008.08 × 79,644.07 - Step 4: Simplify right side
290,005.93x = 34,645,813,974.09 - Step 5: Solve for x
x = 34,645,813,974.09/290,005.93 - Step 6: Final answer
x = 119,465.88
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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.