Finding the Fourth Proportional to 351,430.94, 527,141.68 and 85,193.75
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Solution
The fourth proportional to 351,430.94, 527,141.68 and 85,193.75 is: 127,789.47
Step by Step Solution
- Step 1: Write the proportion equation
351,430.94 : 527,141.68 = 85,193.75 : x - Step 2: Convert to fraction form
351,430.94/527,141.68 = 85,193.75/x - Step 3: Cross multiply
351,430.94x = 527,141.68 × 85,193.75 - Step 4: Simplify right side
351,430.94x = 44,909,173,651.81 - Step 5: Solve for x
x = 44,909,173,651.81/351,430.94 - Step 6: Final answer
x = 127,789.47
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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.