Finding the Fourth Proportional to 258,219.33, 356,319.95 and 143,490.68
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Solution
The fourth proportional to 258,219.33, 356,319.95 and 143,490.68 is: 198,004.50
Step by Step Solution
- Step 1: Write the proportion equation
258,219.33 : 356,319.95 = 143,490.68 : x - Step 2: Convert to fraction form
258,219.33/356,319.95 = 143,490.68/x - Step 3: Cross multiply
258,219.33x = 356,319.95 × 143,490.68 - Step 4: Simplify right side
258,219.33x = 51,128,589,424.01 - Step 5: Solve for x
x = 51,128,589,424.01/258,219.33 - Step 6: Final answer
x = 198,004.50
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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.