Finding the Fourth Proportional to 499,051.36, 748,577.30 and 139,207.68
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Solution
The fourth proportional to 499,051.36, 748,577.30 and 139,207.68 is: 208,811.59
Step by Step Solution
- Step 1: Write the proportion equation
499,051.36 : 748,577.30 = 139,207.68 : x - Step 2: Convert to fraction form
499,051.36/748,577.30 = 139,207.68/x - Step 3: Cross multiply
499,051.36x = 748,577.30 × 139,207.68 - Step 4: Simplify right side
499,051.36x = 104,207,705,379.57 - Step 5: Solve for x
x = 104,207,705,379.57/499,051.36 - Step 6: Final answer
x = 208,811.59
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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.