Finding the Fourth Proportional to 353,577.69, 530,202.11 and 128,781.63
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Solution
The fourth proportional to 353,577.69, 530,202.11 and 128,781.63 is: 193,112.56
Step by Step Solution
- Step 1: Write the proportion equation
353,577.69 : 530,202.11 = 128,781.63 : x - Step 2: Convert to fraction form
353,577.69/530,202.11 = 128,781.63/x - Step 3: Cross multiply
353,577.69x = 530,202.11 × 128,781.63 - Step 4: Simplify right side
353,577.69x = 68,280,291,311.33 - Step 5: Solve for x
x = 68,280,291,311.33/353,577.69 - Step 6: Final answer
x = 193,112.56
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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.