Finding the Fourth Proportional to 411,952.52, 617,629.36 and 172,135.07
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Solution
The fourth proportional to 411,952.52, 617,629.36 and 172,135.07 is: 258,077.49
Step by Step Solution
- Step 1: Write the proportion equation
411,952.52 : 617,629.36 = 172,135.07 : x - Step 2: Convert to fraction form
411,952.52/617,629.36 = 172,135.07/x - Step 3: Cross multiply
411,952.52x = 617,629.36 × 172,135.07 - Step 4: Simplify right side
411,952.52x = 106,315,673,117.66 - Step 5: Solve for x
x = 106,315,673,117.66/411,952.52 - Step 6: Final answer
x = 258,077.49
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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.