Finding the Fourth Proportional to 420,987.34, 631,954.24 and 168,445.99
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Solution
The fourth proportional to 420,987.34, 631,954.24 and 168,445.99 is: 252,858.33
Step by Step Solution
- Step 1: Write the proportion equation
420,987.34 : 631,954.24 = 168,445.99 : x - Step 2: Convert to fraction form
420,987.34/631,954.24 = 168,445.99/x - Step 3: Cross multiply
420,987.34x = 631,954.24 × 168,445.99 - Step 4: Simplify right side
420,987.34x = 106,450,155,590.50 - Step 5: Solve for x
x = 106,450,155,590.50/420,987.34 - Step 6: Final answer
x = 252,858.33
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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.