Finding the Fourth Proportional to 490,009.64, 734,858.87 and 157,507.88
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Solution
The fourth proportional to 490,009.64, 734,858.87 and 157,507.88 is: 236,211.80
Step by Step Solution
- Step 1: Write the proportion equation
490,009.64 : 734,858.87 = 157,507.88 : x - Step 2: Convert to fraction form
490,009.64/734,858.87 = 157,507.88/x - Step 3: Cross multiply
490,009.64x = 734,858.87 × 157,507.88 - Step 4: Simplify right side
490,009.64x = 115,746,058,251.06 - Step 5: Solve for x
x = 115,746,058,251.06/490,009.64 - Step 6: Final answer
x = 236,211.80
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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.