Finding the Fourth Proportional to 235,539.65, 353,095.65 and 85,673.99
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Solution
The fourth proportional to 235,539.65, 353,095.65 and 85,673.99 is: 128,433.20
Step by Step Solution
- Step 1: Write the proportion equation
235,539.65 : 353,095.65 = 85,673.99 : x - Step 2: Convert to fraction form
235,539.65/353,095.65 = 85,673.99/x - Step 3: Cross multiply
235,539.65x = 353,095.65 × 85,673.99 - Step 4: Simplify right side
235,539.65x = 30,251,111,421.67 - Step 5: Solve for x
x = 30,251,111,421.67/235,539.65 - Step 6: Final answer
x = 128,433.20
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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.