Finding the Fourth Proportional to 371,603.36, 512,816.40 and 201,840.80
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Solution
The fourth proportional to 371,603.36, 512,816.40 and 201,840.80 is: 278,542.35
Step by Step Solution
- Step 1: Write the proportion equation
371,603.36 : 512,816.40 = 201,840.80 : x - Step 2: Convert to fraction form
371,603.36/512,816.40 = 201,840.80/x - Step 3: Cross multiply
371,603.36x = 512,816.40 × 201,840.80 - Step 4: Simplify right side
371,603.36x = 103,507,272,429.12 - Step 5: Solve for x
x = 103,507,272,429.12/371,603.36 - Step 6: Final answer
x = 278,542.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.