Finding the Fourth Proportional to 357,981.24, 493,904.70 and 235,438.68
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Solution
The fourth proportional to 357,981.24, 493,904.70 and 235,438.68 is: 324,833.42
Step by Step Solution
- Step 1: Write the proportion equation
357,981.24 : 493,904.70 = 235,438.68 : x - Step 2: Convert to fraction form
357,981.24/493,904.70 = 235,438.68/x - Step 3: Cross multiply
357,981.24x = 493,904.70 × 235,438.68 - Step 4: Simplify right side
357,981.24x = 116,284,270,613.80 - Step 5: Solve for x
x = 116,284,270,613.80/357,981.24 - Step 6: Final answer
x = 324,833.42
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.