Finding the Fourth Proportional to 353,065.70, 529,431.68 and 128,269.38
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Solution
The fourth proportional to 353,065.70, 529,431.68 and 128,269.38 is: 192,343.45
Step by Step Solution
- Step 1: Write the proportion equation
353,065.70 : 529,431.68 = 128,269.38 : x - Step 2: Convert to fraction form
353,065.70/529,431.68 = 128,269.38/x - Step 3: Cross multiply
353,065.70x = 529,431.68 × 128,269.38 - Step 4: Simplify right side
353,065.70x = 67,909,873,345.96 - Step 5: Solve for x
x = 67,909,873,345.96/353,065.70 - Step 6: Final answer
x = 192,343.45
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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.