Finding the Fourth Proportional to 519,163.79, 778,745.71 and 140,084.53
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Solution
The fourth proportional to 519,163.79, 778,745.71 and 140,084.53 is: 210,126.80
Step by Step Solution
- Step 1: Write the proportion equation
519,163.79 : 778,745.71 = 140,084.53 : x - Step 2: Convert to fraction form
519,163.79/778,745.71 = 140,084.53/x - Step 3: Cross multiply
519,163.79x = 778,745.71 × 140,084.53 - Step 4: Simplify right side
519,163.79x = 109,090,223,317.02 - Step 5: Solve for x
x = 109,090,223,317.02/519,163.79 - Step 6: Final answer
x = 210,126.80
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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.